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Join Our Affiliate Program →Need help with an order, shipment, return, refund, product, privacy request, or another store-related matter? You can contact MasterWEB Market using the information below.
Last updated: September 13, 2026For assistance with orders, shipping, tracking, products, returns, refunds, cancellations, privacy requests, or account-related matters, please contact us primarily by email or WhatsApp messaging.
MasterWEB Market provides customer service primarily in writing through email or WhatsApp messaging.
Voice telephone support is not currently available. The telephone number shown on this page is provided for WhatsApp messaging unless MasterWEB Market expressly announces a voice-support service in the future.
Written customer support is available in English and Portuguese. English is the primary customer-facing language for the United States store.
Written support helps us maintain accurate records of orders, shipping investigations, return authorizations, refund requests, privacy requests, and other customer-service matters.
When contacting us about an order, please include the order number, the email address used for the purchase, and a clear description of the issue.
For damaged, defective, incomplete, or incorrect products, we may reasonably request photographs, video, packaging information, shipping labels, serial numbers, or other information needed to investigate the issue.
For privacy requests, we may request information reasonably necessary to verify your identity before providing, correcting, or deleting personal information.
For your security, do not send full payment-card numbers, CVV/CVC security codes, banking passwords, or one-time authentication codes by email or WhatsApp.
Patrick Sueley Carvalho Oliveira
Rua Cedrarama, Quadra 37, Lote 17
Açailândia – Maranhão
ZIP/Postal Code 65930-000
Brazil
This is the seller's business contact address. MasterWEB Market is operated from Brazil and does not represent this address as a U.S. business location.
Do not send a product to the seller's physical address, the address printed on the original package, a supplier, manufacturer, warehouse, or fulfillment provider unless MasterWEB Market specifically instructs you to use that address for the return.
Because some products are fulfilled through third-party logistics providers, including CJdropshipping, the authorized return destination may be different from the seller's address and may depend on the product, warehouse, and reason for the return.
To request return instructions, contact:
support@masterwebbusiness.online
Unauthorized returns may be delayed or may not be properly identified. This provision does not eliminate any return or refund right that cannot legally be waived under applicable law.
MasterWEB Market currently directs its online store to customers in the United States while the seller remains physically established in Brazil.
We do not present MasterWEB Market as a U.S. corporation, limited liability company, or U.S.-based business establishment unless that legal status is formally created and accurately disclosed in the future.
Customers may use the contact methods on this page for questions concerning orders, products, shipping, returns, refunds, privacy, or other store matters.
For detailed information about your order and use of the store, please review our published policies:
Return & Refund Policy
Shipping Policy
Privacy Policy
Terms of Service