Sometimes in business
there are hiccups and burps. Sometimes, downright heartburn.
Assume after contracting for then accepting the work/goods, a client pays in full the agreed upon price by issuing a check. Next, the purchaser asks the business person to hold the check for a period of time, then cash it. The business person agrees to these new terms to their original agreement. After the agreed upon holding period is satisfied, the business person deposits the check.
A few days later, the business person's bank informs them the issuer has placed a STOP PAYMENT on the check. When the business person contacts their client, the client claims there was a problem with half of the order. However, the client had lost the business person's telephone number and was unable to notify them there had been a problem (although this seems disingenous since the business has a website with the telephone number). Regardless, although the client claimed a 'few modifications' had to be made, all of the goods served their intended purpose and were used.
The next turn is laughably predictable: the client now claims they no longer have the funds to pay for the order. They can't pay for the half of the order they were satisfied with; and, they don't know when they'll be able to figure out how much they're willing to pay for the disputed portion of the order.
At this point, the business person has expended funds for time and materials and now realize they are most likely dealing with deadbeats. How might the business person proceed in this predicament?