I am trying to create a free linux app service plan. However ARM keeps telling me:
This subscription has reached the limit of 1 Free Linux app service plan(s) it can create in this region. Please choose a different sku or region.
This however is misleading as there is not a single app service plan. Not a free one, none in the resource group nor in the whole subscription.
It's very likely that there was a free linux/windows based app service plan earlier, that got deleted at some point. Does Azure keep record of that?