Wow Tass,
Classic tale of having delivered, the motivation to make a payment is gone. What were the terms of the agreement with this “well known” person? Was there a signed agreement regarding the work you did? It appears that “well known” doesn’t necessarily mean trustworthy or honest. Way too many charlatans in this sector, proverbial wolves in sheep’s clothing. Always critical to retain an essential element of work delivered to keep the motivation to pay.