This really annoys me. Time and time again I hear of this kind of thing happening. Tenants waiting months for important things to be fixed. A friend of mine has been in a place also 7 months and her oven doesn't even close properly. She has asked countless times and the owners say it's fine and it works. Theres a 3 cm gap between the door and the seal! So no it doesn't work!
It's really quite simple. if you CANNOT afford or are unwilling to maintain an investment property, DON"T buy one! Sorry, but this issue really boils my blood lol.

I really hope it all works in your favour, none of this is your fault and you shouldn't have to deal with it