Price increase with no warning

I received my bill for the month of April and noticed that there was both a package and price increase which i was not made aware of or informed about.

I contacted customer care to enquire to which I was told that there was a price increase across the board.

The reason I signed a contract was because I was expecting the price to remain unchanged for 2 years as I live off a budget and cannot afford to spend big on a cellphone.

I emailed *** and I have received no response

I want to cancel my contract and return the device because this is the worst experience I have had to date with a service provider.