AITable.ai

I bought AITable Tier 3 on AppSumo and relied on the good reviews. I simply ignored the bad reviews. A big mistake!
When entering the email address to activate the product, I unfortunately made a typing error. As a result, the product was registered to the wrong email address. You do not create a password during activation, but always receive a link by e-mail to log in. As a result, I was able to test the software for 4 days. There are a lot of bugs in the software and every time you report a bug you need to enter in a form around 10 different fields. The software was promoted as similar to AirTable, but it is far behind the functions of AirTable.
After 4 days I was loggen out when restaron the Computer and the I was not able to log in to AITable. I have now tried for over two weeks together with AITable and AppSumo to correct the incorrectly entered email address, but AITable was obviously not able to do this.
They must be a really high-tech company if they can't even manage to change an admin email address.
AITable's proposed solution: I should return the product to AppSumo. And I was happy to do so.
My question is: if AITable can't even manage to customize a simple admin mail address. What is the support like when you have a “real” problem?
I can't recommend AITable to anyone.