I want to crossgrade from Logic Pro X to Cubase 10 Pro. Unfortunately I do not have the receipt of purchase (from 2012 or 2013), and Logic Pro X does not come with any serial number. I don’t have any logic pro box as it was purchased through the Apple App Store as a software download.
I have been to the local reseller twice (in Denmark) but they do not know how to proceed with the crossgrade in this regard and referred me to ask Steinberg directly.
What kind of proof would I need to qualify for this crossgrade?
Would a screenshot of the Apple App Store be sufficient showing for instance my iCloud account and the apps I own?
I have also downloaded Store Transaction History through privacy.apple.com which contains all transactions made with my App Store account.