Billed every month but no network

Upgraded my contract in July 2019 after the upgrade I didnt have network, a technician came to check after weeks of phoning the issue wasn't sorted and the technician said he would come back. 2 weeks ago a consultant called that the issue is the network pole and will be fixed in 6 months time. So since July I am being billed for service I dont receive. Which means i will be billed for the next 24 months for service i do not receive.