need help - seller not sending csgo account

I purchased a csgo account on gameflip 1 hour ago and the seller is now messaging me saying “send money” and he has not delivered any account details to me so I can not start a dispute or anything yet. What do I do?

Accounts are forbidden to be sold within Gameflip. So this will probablyt be cancelled and you will be refunded.

Do you mind sending your invite code so i can check it for you?