Mtn staff didn't cancel my contract

This company is so employed with useless staff , when my contract came to a end I gave my notice to cancel the contract , I gave 60 days and 30 days notice they so fun...ed up they didn't cancel it so I am now handed over to debt collectors becouse they couldn't do there jobs now I have to pay for it guess what I am debt review , you a ****ed up company and I will not pay for this you can take me to court I have my references that I cancelled it go **** yourself here my reff Reference number: ***8-75ec-418a-a785-a3c04200eaf6 to proof I have given my notice twice Reference number: 298a02bd-e6ad-417a-90dd-56a165e88c79