I had the same exact experience - after disappointment (couldn't use like 2/3 of my premium credits because every second request failed after they upgraded to 0.46) unsubscribed. They offered refund in email. I replied I wanted refund but no reply
>>pzo+(OP)
Apparently they use AI to read emails. So the future of email will be like phone support now, where you keep writing LIVE AGENT until you get a human responding.