Bharat Sanchar Nigam [BSNL] — sms outgoing is not available from long time.

My bsnl contact no. Is [protected]. I had done complaints on bsnl customer care, they raise docket number and they closed it without resolving issue after several calls of 3-4 days. Don't know from how long this problem is with my bsnl number. Also complaint done to cpgrams (Centralized public grievance redress and monitoring system) but from there also problem not closed yet.
My upi registration is not able to confirm because my sim is not able to send verification message. My any of bank account number is unable to access any upi apps since long time, suffering great loss due to such unresponsible telecom company.