[Resolved]  Hathway — Daily harassment

Team,
This is regarding Hathway Broadband account [protected]. I have taken 3 months plan from them between 18/06/2020 to 17/09/2020. So, paid them 2124 rupees for that period. From 18/09/2020 to till date they were harassing me with their calls daily on 2 things. One is about for plan renewal and other one is about returning their modem. When I taken 3 months plan from them they didn't mention me to return their modem if I stop using it. Later, I shifted my house. So, I didn't carry that modem with me. Now, daily they are mentally disturbing me a lot with their calls. Recently, I got call from them saying if I pay 425 rupees they will stop disturbing me further on this as a resolution however, still they are mentally disturbing me though I paid 425 rupees on 26/12/2020. So, raised my concern to Hathway Team many times via email and in calls but, no use. So, please help me on this. Thanks in advance.