Consumer Redressal

Respecte Sir/ Ma'am, I have a MTS Wifi connection at my home, while purchasing it, MTS representatives told me that i will get a minimum speed of 1mbps whereas in last month i was getting a speed of just 100-200 kbps (I have the screenshots as a proof) I called the customer care 11 times but no satisfactory response was given from there side. now they have sent me a bill of Rs. 871 for Using the "high speed" Internet whereas i was getting a speed of less than 300kbps for the whole month. I would be greatly thankful to you if you could get this issue regarding the bill resolved ASAP. Thank you.