MSC Cruises review: Cabin dirty and toilet blocked 5 times during 7 day birthday cruise

I have heard that this cabin has blocked and overflowing before, you would have thought it would have been fixed or closed to prevent other passengers having the same misfortune, mine was a 70th birthday spoiled and we had brought 4 other people with us in 2 seperate cabins.
This is a total disgrace and I would request our money back for a health hazard caused by msc.

We booked a 7 day cruise from palma in the Mediterranean for 7 people to celebrate my birthday. But the cabin my wife, daughter and I were given was far from perfect, the cabin was dirty and had to be cleaned again. On the following day the toilet blocked 5 times in days of a 7 day cruise. On 3 of the days the toilet overflowing into bathroom.
Reception informed at late evening and toilet not fixed for 12 hours, we had to use toilets in other decks.
On the last day of cruise we were offered another cabin and had to pack our belongings and move.
MSC could have moved us before but failed to do so. The fact that I was partially disabled did not in the slightest help or the fact that we had sailed on a number os msc ships beforehand. I am asking for my money back for the 3 people in my cabin.