HARRASSMENT BY MTN

If there's one thing i regret in life is to take the MTN cell phone contract, i mean i hate how they hide some of the important information. when i took the phone, i wasnt advised that after 2 years when the contract ends i need to go back to the branch to cancel contract, they said and i quote "its a 2yr contract". After that 2 yrs, their sim stopped working, yet they kept on deducting, well i reversed the money and stopped their debit order. now they are busy threating me with the sherrifs and what not, i mean really?, alright MTN, if u want us to meet in court so be it. U guys should've disclosed that in the beginning or at least had the decency to send an email or sms a month before the contract ends telling me to come cancel at the branch, i mean there so where where we signed that i must come to the branch right?, well guys u really are harrassing me with the calls and smses hey, send me an email on ***, i will gadly respond. BYE