Last time we had a storm I claimed from momentum and they repaired the issue, well according to them

Last time we had a storm I claimed from momentum and they repaired the issue, well according to them. The next storm water flowed down my kitchen again and now they're saying it wasn't maintained even though they were the ones that fixed it last time plus I paid out my own pocket a few thousand to actually add extra waterproofing. Actually disgusted that this is what I'm paying thousands for each month