MTS / Sistema Shyam TeleServices [SSTL] — company closed without information and not able to pay the bill

Address:	Tiruchirappalli, Tamil Nadu, 620 008
Website:	www.mtsindia.in

I bought a mts dongle for my official use. No payment pending. Previous month i had been to mts collection office near annasalai, tiruchirappalli to pay the payment. They said the company is closed and no more transactions could be made. I asked about the payment to be made by me. They replied, sir company is closed. We are not authorized to receive the payment and too to get back the dongle. The bill is automatically generated and without using the dongle they claimed the bill. Pl. I am a middle class person. Pl. Do the needful on this matter.