Hi, I paid in full $32,000.00 upfront cash for implants. Yesterday told lab went out of bus. now they want more money for final set. Have all receipts

Hello, I decided I had enough with all of the years of dental procedures, and decided to go full implants. The total cost was $35,000.00 since I basically did not need to finance, they agreed upon $32,000.00 cash. Which wasn't really cash I used a CC but again no finance company needed. Long story short, I had to wear the first pair for 6 months, then after that we would go through temps, was told I could go through as many temps as needed before they cut the final set, which would be out of cubic zirconia. I am currently on my 4th set of temps and they just can't get them right! I had an appointment yesterday, and they told me their lab went out of business, and presented me with an estimate of $5200.00 MORE which I refused to sign. They never once called me, not a single word about the lab and this is a total breach of contract. Not to mention the massive amount of stressed this has caused. My temps are horrible, and I can't even eat correctly.