Person has screwed up my Bank account and locked up my computer. because he put the wrong
refund amounts, need to get a hold of company to rpair the mess.

Its a Scam. They tell you that they are calling from the company to refund your service amount and ask to open some website on your computer. DON'T DO THAT, ITS A SCAM. YOU MAY END UP LOOSING YOUR OWN MONEY.