Mank

Gets stuck constantly in all different tasks, have created a ticket on discord, 2 days no response, creator doesn't respond to forum posts. I'm confident this will be an awesome bot when it's out of BETA. wouldn't reccomend anyone use it in the mean time though. Barely usable for any period of time without babysitting.

This seems like a mess.
The actual issue appears to be with the beta aio script, so I will only consider the refund of that. If you wish to request a refund for the other scripts, please make a separate thread for them. Note that you will need to provide a proper reason for refunding those, so don't just copy paste this thread.
The script is marked as beta, so you will most likely encounter bugs. In order for the devs to be able to fix the bugs, they will need proper bug reports from users. Looks like they've implemented a decent system for those, so it's as easy as possible for you to follow the instructions. I don't think they would ignore bug reports on purpose either.
They have the right to deny someone's access to their Discord server. It's their server with their own rules after all. Note that even if your access to their server is blocked, you can still stay in touch with them on the forums. If they ignore you in the script's thread, you can contact a staff member who can then take action.
The devs said they don't want you to be a part of the beta and they're willing to refund you. That is fine by me.
I've refunded the purchase of the aio script. If you aren't satisfied with the rest of the scripts, please open a separate request for them. And if you do that, I'd like to ask everyone involved to stay calm and refrain from putting up a fight. It will not serve anyone well.