HELP I THINK I MESSED UP

So i sold my game account to someone that wanted to use bitcoin ive never used btc but he was offering $2k in BTC he wanted to use a website i googled it to make sure it was safe but i must’ve missed the fact that the domain was off so the reviews was for another site, i know stupid but in my defense id been up for 20+ hours, i have the funds in my wallet but now they are saying i need to add $240 to my wallet to verify my payment method and then i can withdrawal all the funds, can someone tell me if they have ever used this site or know about it i cant find anything on it when i search the web (i cant add the name of the website it will delete my post if i do so please DM me and ill tell you)