Apollo Cradle — Charging twice for tests

Address:

No1,2nd main,3rd block ,Thyagaraja nagar, opposite KEB quarters,

I underwent day care procedure on 27th May. Dr Rashmi patil did and tissue sample was taken for tests. Insurance co settled the complete bill. Now hospital people asking me to pay again for HPV virus test for which they haven't given me the report. They claim that by their mistake the test charges were not included in the bill.
If this amount would have been included the insurance company would have cleared.
Now for the staff mistake why should I be penalized, Kindly advise your staff accordingly.
Thanks