I haven't logged into my Gozen Content AI account for a while, but when I logged in today, I received a message that my account had been downgraded to a free trial and that when the trial expired, I would be placed on a free plan. I paid AppSumo for Tier 1 access, but Gozen is claiming that they have not received payment from AppSumo. What gives? I would like a refund, please!