I seriously haven't.

Full story.... I've had a reseller account for about 10 years with a certain provider and to be honest it's been fine. The prices keep going up which is annoying but their UI always seems to be down when I want to edit something and log into my WHM which gets frustrating. I host a few small websites for clients and other than that I just leave it.

I have a few business domains which have their own email, I setup the email in cPanel and my main email is with gsuite which I pay for. I wanted to bring it all in under one roof but as I no longer have WHM and cPanel so I had to look for an alternative.

I setup a new server, with Hetzner about a month and half ago, tried installing a few different control panels as I was used to cPanel and I kept deleting my server and creating a new one which to be honest I must have done it about 20 times. I finally stuck with cloud panel and it's been fine. (Could this be my issue?)

I created a single site and setup a proxy server so I can add data to my Airtable database without my credentials being on show. That seems to work fine. (Could this be my issue?)

I knew I needed port 25 unlocked so I waited to pay my first invoice. Once I paid that I created a second server for email and requested that port 25 be open on the original server which I thought they did.

I then deleted my cloudpanel and my website, installed it on my new server and proceeded to setup mailcow on the old server as that had port 25 unlocked (or so I thought)

Not sure when my account got locked but I'm sure it was before even attempting to setup my email server and I certainly didn't send any emails out.

the only other thing I can think of is I'm sure I said I would pay using Paypal. When I attempted to pay, for some reason Paypal wouldn't work so I paid by card.

That is the whole story.