Hathway — Not providing proper service

Hi, iam tharun sai samboju using hathway service from past 2-3 years my account number [protected]. I have renewed my account on 4th may 2020 and the expiry date was 2nd sep 2020.in the said period i have not used the service because of internet disconnection regularly and i have raised many compliants in the hathway mobile app and without resolving the issue the compliants got cancelled. When i am calling to customer care number which was provided in the portal there is no response. And finally my account got deactivated after the expiry date. And customer care executives started calling me daily 20-30 times and iam explained the same to everyone but there was no response from them. Iam asking for the reimbursement of 3 months which i have not received proper service. Please resolve my issue as early as possible