No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
My place needed a wiring upgrade & the roof scraped & repainted. I found the contractors & the checks for those two were held by (I believe) my agent.
YOU should have been the one to choose who does the work. Otherwise, the seller has his uncle's best friends buddy's brother in law do it. No he's not licensed, but he's been doing it 3 years when he can use his neighbor's tools.
Talk to your agent (that's why you pay them) & tell them they need to get this nonsense straightened out. I would NOT go woith a contractor of the seller's choice. He's gonna go on the cheap.