House is covered in mould and painted over every year, wood work is damp in ceilings and floors

Electricity stopped working the day we moved in, fuse blew but we couldn't find the source, someone was supposedly coming to fix it that evening but each time we called they postponed until the answer we got was "I don't have the materials for this, maybe tomorrow". An outside contract had to be called in that night as we were literally in the dark. The problem found was that the wires connecting one of the spotlights in the bathroom had melted together (nice fire risk) the electrician removed the dangerous fitting and told us to keep it in case the landlord didn't accept what we said, the next time the 'handyman' that the landlord sent was there he took the melted fitting and said nothing more about it. To make this house worse evidence of rats was present but when I phoned they did not believe what I was saying. It took until I found a large dead rat under the sink before they believed me. Damp in every corner of the house, always had an odd smell, large patches of black mould around window frames and my bedroom ceiling which came back no matter how many times it was removed.