@harrysone9 It's dampness caused by ground water but I can proffer a better solution to it for u, if your interested, well I'm into construction chemicals.
This my number 07068548370
@akerelelami@UBACares@UBAGroup Some thing similar happened to me to around that 12th January, I was debited 15k, I complained and my account was blocked, later they said I should wait till March to resolve it