Landlord Locked My Only Bathroom For More Than A Week.

Back in November my building announced that there was a defect in the tiles of the bathroom floor, ans that there will soon be work done to fix it.

They came on January 20th to resolve the issue, and then locked the bathroom (REMOVED THE HANDLE) and told me its because i need to let the tiles dry for 3 days. Its now been 7 days of it being locked.

They gave 2 bathrooms for the whole bulding to use. Its a 7 floor building, so i estimate theres around 100 people with only 2 bathrooms to share.

My question is can i ask for a compensation of the days that i didnt have a bathroom? Can i take a higher legal action?