Calcutta Telephones — EXCESS SMS USAGE BILL

my manikjode mobile no [protected]. account no[protected].
my complaints are: 1) in bill no[protected] dt 10/08/2009 SMS usage charge billed Rs 8.80 for 6 no local bsnl sms. but the sms rate is rs 0.25 per (150 character) sms.
2) i have submitted ecs form duly filled up endorsed by my bank with a cancelled cheque on 23.06.2009 at bsnl office, salt lake. but no response till today.