United India Insurance Company [UIIC] — Reimbursement is not been made

My ccn no. MDI 2769519. I have undergone endoscopy at global hospital/ baldota institute of digestive sciences after several reminders and discussions via email with insurance company, they agreed to reimburse 10980 rs. I have lodged amount rs 17880. They have deducted 6900 rs. Against investigation reports of biopsy of rs 6750 rs and hospital registration charges of 150rs. All details of that test performed are given to them, still they are denying to reimburse the remaining amount.
In the attached files, it is clearly mentioned biopsy report is performed and H Pylori is negative.
I have been paying regularly premiums to them from past many many years and it's been only couple of times I have applied for reimbursement of payment against medical treatments.
Even though all the reports are sent to them, still they are not ready to reimburse remaining 6750 rs.
Attached are reports and discussions with insurance company.
Now, we hereby claim remaining 56750 rs from insurance company, rs 6750 remaining reimbursement and rs 50000 for mental harassment faced by us from past few months due to insurance company in giving reimbursement despite of proper documents.
Kindly do the needful.