Bot developers stealing money and harrassing users.

I recently utilized the 'tip.cc' discord bot, a cryptocurrency bot that acts as a sort of 'storage wallet'. I deposited about $350 in ethereum and bitcoin cash that never got credited from the discord bot. I reached out to the support, and they first harrassed me in a way that I've never seen someone do before. First, I was really worried because $350 is a lot of money to me.

The developer said 'users deserve less' and said some horrible things, and then blocked me.

What can I do? The bot is verified, but doesn't work and I feel really hurt.

Thanks.

Here are some screenshots:

https://prnt.sc/131rlan

https://prnt.sc/131rlej