Hathway — Unethical behaviour - [protected]

I have started my plan on 20 Dec 2020 for 3 months and after one month I had to change my location, so I raised a ticket to Hathway to change my location within Noida and they promised that if I want to change my location they will do it free of cost. But there was no response from them till my subscription end.

After the subscription ended, they came back and provided me the new subscription offers and whenever I tried asking for the status of the ticket they disconnected the call or said they don't provide service in that location. Now Hathway has mailed me that they can take a legal action against me as I have the modem.

Previous Location where connect was taken: Sector 55 Noida

Location where new connection was to be transferred: Sector 75 golf City Noida

No: [protected]

Let me know what should be my next step