Horrible fibre service

I have had my fibre line for nine months, and will be moving to a new address at the end of June, so I did the responsible thing and at the end of May did a request to relocate my fibre line. At the end of that week my fibre was de-activated, 4 weeks too early, and I have been without internet for over a week, spending a fortune on bundles as I work from home and can’t be without internet. No-one can give me any answers and the one agent had the cheek to tell me that I can’t do anything about it. Now I have been paying for a mistake someone else made and no one seems to have any urgency about the matter. I have tried being patient, but now going into my second week without the service I have already paid for is ridiculous. Someone needs to fix this or i am cancelling the contract.