Unacceptable conduct from Mweb

I have signed up for a Cell C LTE WiFi product with Mweb mid 2018 and have been with them up until now. They have notified their customers that the LTE service form Cell C will be discontinued and the the termination date is 31 October 2019. I have been trying to upgrade my service to a fibre connection with Mweb since December 2018 and I checked with Mweb and according to Mweb I was able to do so because it was available in our area. I placed my order only to discover that the fibre infrastructure was not available and my order was cancelled. I was told to wait a few months and try again which I did and yet again my order was cancelled due to the same issue. I have since been very patient in waiting for the fibre infrustructure to be completed which up and untill now is still not there. Naturally I would expect Mweb to provide my with a similar product to continue my LTE internet connection until the fibre is available. My dilemma is that I don't want to be caught in another contract for 24 months so that I can change over to fibre when it's available. Mweb simply said that there is no other alternative but for me to sign up for another 24 month LTE service. I find this totally unacceptable since I didn't cause this and I've been paying for my service all this time and now I'm forced to either not have any internet or to sign up for another 24 month contract. Both options are unacceptable.