Did not receive the account and they aren't giving me my money back

Okay let me start from the beginning, before money was sent, I had echeck pending their way and it took 4-5 days. So they didn't give an account, which was fair. No money, no account. Good business. But then my pending payment took ages, so I sent another 500 USD through paypal and it went through instantly. Money arrived in their account (27th of october, i have SS proof of everything btw). So with the money with them, my other pending payment, I had to wait for them to refund. They did but it was 50 short, so 450. They claim money was lost in conversion. So I talk to paypal support and they confirmed the money was sent in full. So they stole 50 from the other payment. But this isn't the real issue. The real issue is the main purchase. So I paid this person $500 USD for a gold boarder ow account, the account also had CoD and WoW with it. (hence price) So two other games. Logins were invalid because they put a fake email and they waiting on for blizzard support to get the account. etc etc, so they offered me another account but way less (only a silver boarder pink mercy OW account, no othergames). I said okay (RIP off not worth 500 to begin with as the original item!) since then, its been days (going to a week) and I have not received an account from this person at all. They have my money and I don't have an account. They keep sending out excuses as to why they are delayed in giving me my account details like sleeping or new PC or college. yada yada it got a bit much with excuses and now they have completely ignored my messages. No excuses, once you have money, you must give the person the account they purchased! I had no choice but to write this and reach out. I want my money back! I have proof of every convo. If needed. Even with paypal. I want my money back now! i didn't receive an account so why the hell are you keeping my $500 money!? SEND IT BACK SCAMMER! you know my paypal.