Hello there. Paid for premium account (1 month subscription) two days ago. Everything was fine, but after ~1 h. of playtime, my account went frozen and now I have only free status on account. I created ticket, but still no answer.
Sounds like you will have to wait for your ticket to be responded to. Support wait times may be as low as about 3.5 weeks but could extend up to a few months.
yes it took 3 weeks to me, no worries when they respond they will give you the days you paid for
Just remember to make the ticket from here specifying the game, account/billing, put the mail you have with aoc account, in the text box write the username of you account and explain with details the problem