Granite bathroom countertop not level
Hi all. I have a problem with the installation of granite countertop in bathroom. It was installed last Tuesday on my existing cabinet which is forty years old. The company came out and did all of the prelimenary work to make sure it would be strong enough. After the install it looked fine to my eye. The next day after the caulk was dry I could see that the backspash was going downhill. It is off by half an inch. The caulk was white when the installers put in on and it was not until it turned clear the following day did it become obvious. They cut a piece of wood off the bach corner that I believe was a shim that was put in when the house was built. Obviously they did not use a level on it. I called the company the next day and the manager said that he was going to try to get over that afternoon. It has been almost a week and I have not heard a word. What should I do?