MTS / Sistema Shyam TeleServices [SSTL] — Received a bill after the cancellation request.

Address:	Chennai, Tamil Nadu, 600050
Website:	www.mtsindia.in

MDN NO : [protected]
ACCOUNT ID : [protected]
My device is deactivated due to unpaid bill. I ask them to deactivate the account. They said, "Once you pay the outstanding bill amt of 2291/-, we will deactivate the device". So I made the payment and called the customer care instantly to deactivate my account. They said, "Your account will be deactivate sooner". And they given the cancellation request no 6971413. After 4 days I received a new bill of 174/-
So I asked them to send me
1. Detailed bill for 174/-
2. Cancellation policy of your company.
I didn't get the both yet.