That sucks your apartment flooded, but depending on what state you’re in you might be able to do something about it. Some states have laws that allow you to “repair and deduct” emergency repairs. Meaning if your landlord refuses or doesn’t answer you, you can pay to have the problem fixed yourself and then deduct the amount you paid from your rent payment.
https://www.findlaw.com/realestate/landlord-tenant-law/how-does-a-tenant-use-repair-and-deduct.html
I know what we’re going to do today!