No coverage for more than 2 months

I have not been able to make or receive calls or use mobile data when in the vicinty of my home for more than 2 months now. The problem is not with my phone as it is working fine when I am receiving from another tower. I have been writing e-mails and filling in forms (on links they keep sending me). On 28 October I received the first and only feed back: they acknowledge a problem on the tower, but aparrently they are not planning to do something about it. For the last 2 months I have lost almost all my data and voice bundles as I can not use them. I have a contract so I am paying for something I can not use. I also have my own bussiness and am losing money by the minute as clients can not get in touch with me.