Sim card blocked at The Glen on November 2014,

I lost my data 8.ta on the 28 november my id number is ***,I cancelled and closed the account at the glen,the consltant said it will cancelled,i was billed in Dec and Jan,Reported the matter in Westage,nothing was done,i went to,Cresta 07Feb,they said it will cancelled,billing will refund me when you call the branched,non of them answer the phones,please help I'm Lorraine my number is ***,telkom must cancell and refund ne