Second request for info. on suing for fraud?

I had stated some facts about my needed info. in a question that I'd submitted earlier. Unfortunately the responses were of little use in my situation. So here goes one more time in hopes that someone is familiar with this law. I'd had some repairs done on my truck at a licensed Auto Repair shop. I found that it was necessary to have Consumer Affairs Auto Repair investigate some of these charges. After the Shop had stated that they had sent some of the work out since they didn't do all repairs there, it was mandatory to produce receipts confirming this allegation. They were unable to do so. This is an obvious case of fraud. What bussiness can't keep tract of receipts or in the worst case sinerio, request a duplicate copy from the other shop where you subcontracted the work out to. My question is, if I hire an attorney to sue them in civil court, what percent of the fraudulant amount do you add to your suit and what's the max. amount of days that you can add this? Thanks DooMee2x