@mark-pearson

Welcome to the Magix forums. Because these are user to user forums, no-one who posts here can help you, unfortunately.

In addition, are you aware there is a dedicated Samplitude/Sequoia forum here?

In the case of your query however, if you did not receive an email confirmation of your purchase, whcih should have included your serial key, you will need to contact Magix Sales via the Support button in the header of any forum page.

HTH

Jeff
Forum Moderator