ACT Fibernet — My billing and my connection

Hi my name is Vivek Raj, with Account number :[protected].
My address : 20-140-4 Shamshabad .Hyderabad. 501218.
Query : As i work for an MNC and due to Covid we started working from home and I opted for ACT as my net provider . after using it was few days the services got interrupted in my work .When i complaint the person from technical team said that the box is far from my house and if i put the box at my house it will not get interrupted and the current bill i will be getting Rs100 from ACT( As the box is fitted n my premises and the electricity is used from my home ) i did not used the Act services from last 2 months as I was in out of station ..Now i received a bill of RS 1646.84. now my question is from where did i get that bill when i did not use the services and what about the RS100 adjustment which i was promised to get for the power supply from my house .i request you to look into the matter or else I have to take serious action .I am fed up with the services of ACT when i call customer care they simply tell that they have raised complaint . but no use. I also received n number of calls from technicians i every time tell the whole story . but no use .hope you will look into thus matter .