I have been scammed by a computer repair company: I paid them $350 to repair my computer after their number came up on a crash screen. It did sort of work after they fixed it. Now they want to refund my money and tell me they created a paypal account for me and put $2,350.00 in it. Oh,my! The fellow mistakenly put too much in the account and now I must go to Walmart and send him the excess amount. What should I do?