How would you handle this situation?

I recently moved into graduate student housing with 2 randomly assigned roommates. Before moving in, I made the initial “hi, what’s up” contact via email and mentioned offhand that I’m not the neatest person in the world (I’m not). They both emailed me back that cleanliness was extremely important to them and were pretty cold and unfriendly in their emails. I never replied, which I admittedly should have.

Fast forward a few weeks: I still have not moved in. The housing department tells me they’re both upset that I am messy and unresponsive. I immediately email them, apologize for not responding sooner, and say I think I did not communicate very well about my cleanliness levels. This time, they don’t respond.

I moved in Friday night. Saturday night, a glass of wine was spilled on the living room carpet. I have done everything I can to get the stain out and feel awful about it. This morning, one of the roommates—who I still have not met—complained to the housing department and was “furious”.

I feel terrible about the carpet. I’m going to have it professionally cleaned. In the meantime, though, how to respond to the roommates? I think their complaints are basically reasonable complaints—I would never get upset over this sort of thing, but I can understand why they would. So is there any way to smooth this over? Or should I just start looking for a new apartment?