Thanks for the responses. I will have to see with a level. I don't think there is a pitch problem. I think the issue was more with the job they did- it didn't make any sense to me that they would put caulk over the grout without removing it first. I think that is why there was mold behind...
Awhile back I had a company come to caulk the joints and bottom on my shower. The shower had grout instead of caulking where it meets the shower tray and in the corners. The company was to remove it and apply caulk. Instead they caulked over the grout. Shortly after it started to crack at...