Payment policy

Gainlier.com – Billing Policy

Thank you for shopping with Gainlier.com (“we,” “our,” “us”). By completing a purchase on our site, you acknowledge and accept the following billing terms.

1. Accepted Payment Methods

All orders are settled in British Pounds (GBP £).

Category Methods
Credit & Debit Cards Visa, MasterCard, American Express
Digital Wallets Apple Pay, Google Pay
Other Cards Discover, Maestro, Diners Club, Union Pay, JCB

2. Billing Information Accuracy

When you place an order, you agree to supply current, complete, and accurate billing and account details. Please keep your email, billing address, and payment method updated so we can process your purchase and communicate with you without delay.

3. Pricing & Promotions

  • Price Changes: We may modify product prices or discontinue items at any time, without prior notice.

  • Discount Codes: Enter promotional codes at checkout. Unless stated otherwise, codes apply only to new orders, cannot be combined with other offers, and cannot be applied retroactively.

4. Order Confirmation & Billing Documents

  • Confirmation Email: After checkout, you will receive an email summarizing your order, chosen payment method, and delivery option. This message serves as your proof of purchase.

  • Invoice: A printed invoice—listing each product, any discounts, and shipping fees (if applicable)—is enclosed with your shipment.

5. Payment Processing

  • Authorization: By submitting payment, you authorize us to charge the full order amount to your selected method. All payments undergo verification and security screening.

  • Failed Transactions: If a payment is declined, we will notify you by email. You must then provide an alternative payment method to finalize the order.

6. Disputes & Chargebacks

  • Order Issues: If something is wrong with your order, email us at contact@gainlier.com. We aim to resolve all issues promptly and fairly.

  • Chargeback Policy: Every chargeback is investigated. If the dispute is unwarranted, you will be responsible for the original amount and any associated fees.

7. Contact Information

Email: contact@gainlier.com
Phone: +44 7476 954627
Address: 221 Evering Road, London, E5 8AL, United Kingdom

Business Hours

  • Monday – Friday: 09:00 – 18:00

  • Saturday – Sunday: 09:00 – 14:00

Typical response time: 12–24 hours.

By completing a purchase, you confirm that you have read and agree to this Billing Policy.