I face the same issue, even with proof that I'm allowed to sell my merch and after having sent the documents proving that I hold the licenses to the legal team, I receive no reply at all!

Not at all, I tried to call the normal Shopify support, I just send two more emails last week, and I even tried to connect to the legal team via a Shopify account manager. I receive no reaction at all. I mean, not even a "stop writing us" ... 

Dear Shopify Legal Team,  I had an issue with my store "gameflavor.myshopify.com" a while ago. On the 25th of August, I received an email regarding the termination because of IP disagreements. I replied with all official documents proving that we are...