Miss information

Last week Wed, 13th Feb I got a call on my mom number from an Indian guy telling me I can cancel my contract and will not have any issues and my last payment will be end march. I called back the same day and spoke to Selwyn who tried to sell me some package and then got an attitude when I said just cancel my contract, he assured me that the contract is cancelled and I would get a notification. Thursday I called back to confirm if it had been cancelled, to my surprise I get told my cotract ends on june. I need the correct info and i need this number cancelled some staff says i can cancel some till june. I upgraded one numbet and now want to close the other. This is really a ****ty experiance.