Shockingly Bad Service

I would rate the service less than zero if I could.

My service fee has increased twice for the year and I called and was told to change service providers through Mweb. The new line was installed 2 weeks agoand to date nothing has been activated. I am still being charged the higher rate and both lines showing as active. How do I get this matter resolved and the new line activated ASAP. I have been calling Mweb for the past 2 weeks and each time my call is dropped. Help, I am at my wits end and I need this matter resolved.