MTS / Sistema Shyam TeleServices [SSTL] — Mblaze wifi

Address:	Kolkata, West Bengal, 700059
Website:	www.mts.in

I had bought a mts mblaze for my household needs no.[protected]. Myname is bikash kumar jaiswal. The amount for each month. They did not provide speed as much they had promised. The data limit was also less. Finally i cleared all their dues till march 2017. I disconnected the connection and did not use for the month of april17. They started to send messages and calls. They started threatening me by sending legal notices. Please solve the problem.