Complaint Review: Qiki Mobile Mechanics

I responded to an add on Craigslist for a mobile mechanic to come and replace my radiator.  He had a folder with all of his company info and business to show me that it was a legitimate business.  I should have made copies.  He removed my radiator and noticed more things that needed to be replaced.  He ended up coming over to my house 3 different times and each time I gave him more money for things that needed to be replaced.  The total was over $1400.  I called him numerous times times and he would say that he would be over later that day and then he would never show up.  He did give me receipts for the times I gave him cash.  I didn't realize until he wasn't showing up that he had signed two different names