cell c is dodge

after agreeing to a month to month contract with no device just some benefits, i also changed my bank and debit order. cell c after 5 months still could not sort out my new banking debit order. switched off my line i dont owe anything on and then i paid extra just to have my line active. then i tried to cancel my month to month agreement that i stated to them is the biggest condition why i take it. cell c changed my month to month agreement to 24 months without notifying me. i tried more than 10 times to rectify it but cell c just cant care to rectify this. terrible worst service ever received. seems like cell c is in huge financial difficulties.