This past June when I was riding with my girlfriend at the time, she accidentally backed into someone's pickup truck while trying to pull out of a parking spot. We stayed to talk to the truck owner. Since she didn't want to risk increasing her insurance rates and she was in financial hardship, I volunteered to pay the truck owner under the table for repair and paint job costs to the scratches/dents done. It costed me $1,000; the first $500 was for downpayment and the 2nd half was for next day after he showed me the invoice. I didn't ask the truck owner for a copy though. I recorded on my phone back then showing his vehicle and tag # and then-girlfriend in the video while he had to take care of some other business.
After settling with the truck owner, I talked to then-girlfriend that since I was bearing the financial stress. I told her that the least she can do in return is finish college, find a perfect job, repay me for the fenderbender, and get married. I never said anything about it being a gift. Later on she would say no as revenge for a personal grievance in our relationship.
However after we broke up, I was only able to recuperate parts of my fenderbender bailout by keeping a few items as well as the unused amount of the rent payment she made upfront for the month she moved out. We also originally had a joint personal training contract at a gym that would accrue sessions. Since stopping my payment for my half of it, I almost exhausted all the remaining PT sessions including ones she continued to pay on her own as another way to recuperate as much as my fenderbender bailout as possible. Even after all those efforts, there would still be $200 left to recover.
The only evidence I have is that video recording of the incident that day implying her being responsible and her not denying it. I also have the truck owner's contact info. I could also print copy of the deposited/cashed checks that are scanned to my banking e-statements. Even if I know her social security # and new address, is it possible for me to recover the last $200 from her via small claims lawsuit?
She stored her credit card # on some of my online accounts with some merchants. If I use it as another way to recover the remaining amount of my fenderbender bailout by purchasing something, will it be legally risky?