Hathway / Gujarat Telelink [GTPL] — Regarding refund as there is technical issues from company side

I have GTPL broadband connection plan at Bhavnagar, Gujarat. I renewed plan yearly of Rs. 5750 on 04/05/2033. The internet is not working from 19/07/2023. I called un customer care and filed complaint about that but it is not resolved. So I complaint again and one technician visited my home. The technician told that the smart switch ( that they install for proper connection) is not working and they don't have new smart switch as it is china product and company is not buying because it is costly. Now, there no any other way to connect internet at my home. As there is fault from company side I told them to stop my broadband service and request for refund. Now they are refusing for refund. I am eligible for refund. It is company fault then also not giving refund.