I had been receiving calls from 12 digit telephone nos(923014975127;923426060988)Once,I called back on 923426060988.The response I got was”the no. you are trying to call is currently busy” in Urdu.Ever since then,my balance is getting deducted without me making any calls or messaging.

On checking with Customer care,I was told I am being charged for my blackberry data plan which I also got disconnected.Still,my balance is getting deducted. I think my sim has been cloned. Please help me ASAP.