Vodafone — refund cheque not given from last 10 month while working time is 45-60 days

sir, i was a vodafone postpaid constmer frm last 10 months. i have to deactived all my vodafone services dur e to some reason but still now i didn'tget my security refund amont yet. jbki eski service time 45-60 days totally mene abi tk 15-25 round kr liye store k but always ki aaj aana kl aana ya fir mene mail daal diya h aap 7 day aake dek lena, last tym bole ki 2 month baad aana...jb me kl wps visit kiya to again disaponited.so please do some thing