You must follow the brand guidelines when using these trademarks, logos, badges and commercial representations. Unless you have received our express written permission, you will not otherwise use a trademark, service mark, trade name, trade symbol, domain, commercial representation or any other form of ownership on our part (or any other variant of these), to issue press releases or other advertisements about us, the program or agreement, or to quote us in promotional materials. You will not accept any ownership of us (or a variant of it) or try to register it. We have made a new application testing service available to developers. We have updated the application and service distribution agreement so that the terms and conditions for Live App Testing apply to all application testing services we provide. Please read carefully the full text of the updated agreement. Q: How do I sign up to use MWS for my own Amazon seller account? On the first page of the MWS portal, click the Save for MWS button on the developer.amazonservices.co.uk.