Mtn not delivering and not willing to talk

Good day,

I am more than upset with Mtn,I am now just irritated and with this kibd of customer service I dont think You will be going far,to cut the long story short I had a contract with mtn which ended in july last year,I then ported the number to telkom,3 months later I get a meesagr sayong I owe them,fine enough the reason is I never cancelled the contract ,mind You I never got any data or airtime since I ported,I then physically went to mtn store,payed up the balance,then called to cancel,right in yhe store with a consultant,similary 6 months later my credit score is affected,I owe R265,how so not sure,I then called numerous time,the phone rings tranferred until it is dropped,i then visit mtn store they call,50min later after long playing of music we wre dropped off.I am then advised to visit head office in fairlands,but why,for what,cant You just assit me,this has been dragging on for months and is impacting my life,I need this resolved as in last year.