I just received a letter from a law firm, saying that I owe a company $9000. Some background: I used this company to install granite countertop when I remodel kitchen 3 years ago. I forget the total amount, but should be less than $9000. The payment plan was 50% due on contract, 25% due on countertop finish, and 25% due on installation. We paid the first 2 payments. When they installed, I found the edge is different from what I ordered. I immediately stopped them and called the salesperson. I wanted them to do it again. The salesperson offered that they installed the wrong one and I don’t pay the last payment. I agreed on the phone. After that, the general manager of that company called to collect money. He was very rude. I said either they do the right way and I pay the whole amount, or I will not pay any more. He threat to sue me, but I did not get any legal action until now, 3 years after.
I called their lawyer, and he is rude too! I explained everything. They said they will precede lawsuit.
I don’t plan pay them even a cent. They don’t have my SSN. They only have my address and checking account number. Will this collection damage me credit?
Thanks for your advice!

