I am very sorry to hear that you are not happy. I understand that the cabinet is hard to fix, but I would be more than glad to pay for paint or anything else that might fix the situation!
At the same time, I'm a bit surprised - we didn't drink red wine except for the bottle that you had left us on the dining room table. And that we drank at the table and washed the glasses afterwards. I'm quite sure that we didn't spill any at all - not to mention spraying the walls.
Hopefully you will get the stains cleaned up without leaving any permanent marks. Again, I'm sorry for the trouble!