Mdindia Healthcare Services — Not received the reimbursement of claim

My father who is a Senior Citizen has submitted his medical bills for reimbursement since Feb -2020. He has been continously following up since then but the MD India Health care has not reimbursed his amount stating that due to covid, they are low on staffing. Since all the organizations have resumed normal work, this should surely not take so long i.e 9 months to process the request. We have been paying the amount since so many years and this is the only major hospitalization claim we have claimed for. It is been a harrassment for my father who is a citizen citizen. Also MD India health care is not doing any favour. It is their duty to process the legitimate claim which is submitted.
I appreciate if some help can be provided to close this issue.
The claim is for Mr. Harihar Pawar and his cell number is +91 [protected]