Refund policy

Last updated: 20 October 2026

Preparation and delivery

Preparation normally takes 1–2 business days. We inform you by email of exceptional preparation delays. Estimated transit after dispatch: mainland Portugal around 3 business days; Madeira around 5; Azores 7–15; Europe 5–10; other international destinations 7–15 business days.

These are estimates, not guaranteed dates. Preparation, customs clearance, holidays and carrier disruption may add time. An estimate does not waive mandatory delivery deadlines or remedies. Contact us promptly about a delay or missing parcel.

Destinations, charges and customs

We ship using selected delivery partners. Current delivery countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden. Only destinations and addresses offered at checkout are available; local or temporary service restrictions may apply. Charges appear before payment. EU orders of €75 or more qualify for free delivery, based on the eligible order value shown at checkout after discounts.

For another destination, email hello@bymathletica.com before ordering. Carrier coverage alone does not mean a destination is available in our store.

For shipments subject to customs, the recipient is responsible for lawful import requirements and duties, taxes or clearance fees not collected at checkout. We do not control these amounts. This does not shift our own legal obligations to you. If goods are returned following a delivery or customs problem, we assess the reason and any legally recoverable costs; no automatic forfeiture of the purchase price applies.

Correct delivery details

Check the address before paying. Tell us immediately if it is incorrect; an amendment is not guaranteed after processing starts. Cooperate with reasonable carrier delivery or collection instructions. Any additional re-dispatch charge caused by incorrect information is limited to legally recoverable, documented costs agreed before re-dispatch. If we supplied the wrong goods or address, we arrange correction at our expense.

Cancellations and return requests

You can request cancellation from order placement until the item is fulfilled (dispatched). Once an item has shipped, use the return process and deadlines below; dispatch does not remove your statutory withdrawal rights. Start a request through Returns and cancellations in your customer account, or email hello@bymathletica.com if the account option is unavailable. A change-of-mind return remains subject to the applicable hygiene exception and documented diminished-value deductions below.

Change-of-mind returns: strict deadlines

Notify us of withdrawal within 14 calendar days of receiving the goods; for one order delivered in parts, the period starts on receipt of the last item. Send a clear withdrawal statement to hello@bymathletica.com. Providing your order number, name and returned items helps us identify the purchase. Keep evidence that you notified us in time. We also accept any other clear withdrawal statement permitted by law.

Send the goods back without undue delay and within 14 calendar days after notification. We do not offer an additional voluntary return period. You pay direct return postage for a change-of-mind return. Please use secure packaging and a service with proof of posting; tracking is recommended. Contacting us for practical instructions helps avoid mistakes, but prior approval is not a condition of statutory withdrawal.

Hygiene seals

Keep any hygiene seal intact when considering a return. We refuse change-of-mind returns of unsealed goods where they were supplied sealed and are legally unsuitable for return for health protection or hygiene reasons. This exception is assessed against the nature of the goods and applicable law; a label or opened outer packaging alone does not establish it. Statutory remedies for non-conforming goods remain available.

Condition and deductions

Inspect with care and keep the hygiene seal intact, together with labels, accessories and original packaging where possible. Using the socks and returning them does not automatically entitle you to a full refund. If a hygiene seal has been broken and the statutory hygiene exception applies, a change-of-mind return is excluded as explained above. Original outer packaging is recommended, not an absolute condition of withdrawal. Avoid wearing the socks for a workout, washing them, contaminating them or damaging the fabric or grip if you intend to return them.

We inspect returned goods and may deduct a substantiated amount for actual diminished value caused by handling beyond what is necessary to establish their nature, characteristics and functioning. For example, workout wear, washing, staining, damage or removal of a hygiene seal beyond necessary inspection may reduce resale value. A broken seal alone does not automatically justify a deduction or eliminate your rights; we assess any actual loss of value and whether the legal hygiene exception applies. A deduction is case-specific, not an automatic restocking charge; we explain the basis and available evidence. If excessive handling makes the goods objectively valueless, the legally supported deduction may reach their full value. We do not apply an arbitrary fixed percentage.

Refunds and exchanges

We refund the amount actually paid for validly returned goods. Discounts are allocated proportionately. For withdrawal from the whole order, we refund the least expensive standard outbound delivery offered; any upgrade above that is excluded. Partial returns are assessed under applicable law rather than automatically refunding every outbound charge.

Refunds are due within 14 calendar days of withdrawal notification; we may withhold payment until the goods or proof of their return is received, whichever occurs first. We use the original payment method unless otherwise agreed and do not charge a refund fee. Your bank or payment provider may take additional processing time.

We do not operate a separate voluntary exchange programme. For a different eligible item, return under these rules and place a new order. This does not restrict replacement as a statutory remedy for a defect.

Faulty, damaged or incorrect goods

Email hello@bymathletica.com with proof of purchase and the issue. Relevant photographs can help, and we may need the goods made available for assessment. Ordinary wear, accidental damage and deterioration attributable to misuse or incorrect care are not themselves defects. Mandatory burden-of-proof rules apply.

Your statutory conformity rights remain unaffected, including the applicable three-year period under Portuguese law. We cover costs of legally required remedies for non-conforming goods.

Return address

EVB, UNIPESSOAL LDA — BYM Athletica
Calçada das Necessidades 10
Apt. 501
1350-214 Lisboa
Portugal

Withdrawal notice

Email hello@bymathletica.com with the following details:

To: EVB, UNIPESSOAL LDA — BYM Athletica, at the return address above; hello@bymathletica.com.
I/We withdraw from the contract for: [goods].
Ordered on / received on: [dates].
Order number: [number].
Name and address: [details].
Date: [date].
Signature: [paper notices only].