prepaid , card to block — please block the sim card, i requsted several times

Dear sir,
I am Dr sudheendra hadadi pleas block the sim card as i have misplaced some where and lost hence i requeste several time but no response why this much poor sevice, my no is [protected] hence please blcok the same, i am Dr sudheendra hadadi
address is, Dr sudheendra hadadi
no 618 D main road, vysya bank colony,
Arakere, bannergahtta Road, bangalore 560076
alternative no 26481126 / 26590524