Upgrade or cancel

I signed up with home connect in November last year. Had no issues with connectivity or speed. This morning I received an email stating that some of the lower MB lines will be discontinued and that I have an option to upgrade to a higher line which is DOUBLE THE PRICE or the contract will automatically be cancelled in June. I obviously would rather cancel as there are much cheaper service providers around that can consistently provide the same service at the price they advertise it. I sent an enquiry regarding who is then liable for cancelation fees in this case as it is the company who is unable to uphold their end of the bargain and unable to fulfill their contract terms. Absolutely dissapointed as it seems like a manipulative way of forcing customers to upgrade their contracts. I will be awaiting a response to my enquiry.