I recently went through something similar to your "challanges" with a different person. On another "Board", I purchased an item and sent a UP Postal Money Order for it shipped to me.......nothing ever arrived.
After waiting several weeks, and repeated e-mails trying to contact said individual.........I figured I was out the funds.
"But", I figured that why should I just give up (?)........so I went ahead and contacted the Postal-Inspectors at: 1-877-876-2455 (for "Mail-Fraud") after I had informed the person that took my funds that I was going to do this if he didn't fix the problem)....and submitted a "Mail-Fraud" case. I figured that if I was already "out" of the funds that I sent, what else could he do (?). Remember to make copies of e-mail/letters/reciepts, etc. in case "Law-Enforcement" needs them.
Then, due to my case being "contact-through-the-internet", I contacted the FBI's Internet-Fraud-Unit "on-line" and submitted the same information. Again....remember to keep copies of everything in case they are needed. Their web-page is:http://www.IC3.gov
Be fair and warn the other person of what you are going to do if they don't fix the problem.
As I didn't hear anything back from these two agencies ....... I also went "on-line" (do a search by Police/City/State-etc..) and contacted the closest "Police-Chief" near the person that took my money...........sent the Chief-Of-Police a nice letter asking for assistance in all of this and sent him copies (remember-copies) of all e-mails/letters/receipts, etc.....
About a week later, I got a phone call from a Police-Officer telling me that I should hear back from "said-party" by the end of the week with either my order or refund............YEP, my order arrived on the next Monday.
I have to give thanks to our "Law-Enforcement-Officers" who work hard and really do serve the public in their areas. They are a credit to their "Agencies".
Another course is if he really won't fix the problem of either returning your item and funds not used......is: as this was a "business transaction".......and as such, if all else fails, you could contact one of the "CREDIT-AGENCIES" that I believe would be more than helpful in putting his/their names on one of the many lists they keep to "help" his credit-score (???). Send a "letter" to them and ask how to do this.
People don't have to sit back and "take-it".......you have other means to meet the challange. Just be fair about the whole issue.....notify him with time to react (IE: So he will be able to send you the item refinished or return item with funds)......keep copies of registered mailings and e-mails.....and copies of your phone-bills showing contact dates.......then ask him nicely to fix the problem or that you will have no other recourse than to file charges. (NOTE: At that point, if he still has your item and funds, then look out).
All of the above fixed the "issues" with my order/purchase......but your results may differ......so you have been warned.
Regards, RichardS in MI.