Just found out I was scammed by this user

I haven't been on PlayerUp for long, just signed on to sell my Be The King account. This user contacted me about buying my game account and I probably should have realized it was too good to be true that I'd get a response so quickly.

The next day he said on discord he paid the sale price for it and I got an email from who I thought was PlayerUp but they asked for a service fee. I had to sign up for SeaGM to purchase a digital gift card to send as part of payment. I did that but felt uneasy because nothing else was happening. Then I get an email a half hour later or more saying I need to pay a 100 dollar service fee and I immediately knew this was bs. It would have taken 3 quarters of what I was selling the account at. I asked questions to see how this user would respond and he went from not knowing what was really going on to all of a sudden realizing all these fees and percentages I needed to pay. It was ridiculous. Blocked all contact and I'm deleting my accounts on seamgm and if you were scammed by him too make sure you can organize stop payments on anything possible