@jaspos, if you haven’t already, can you go into the Azure Portal and click on Subscriptions->[Your subscription]->Usage & Quotas left blade option, and then filter the region(s) and GPU SKU you want to increase the quota, and request the 12 cores there. If it doesn’t immediately come back with a successful message after 1-2 minutes (automated increases), can you choose the option to create a ticket and then Direct Message me here with that ticket# to help expedite you getting that quota?