Helping Sanjiv Kler with Uncertainty in his family

I would like to request anyone and everyone to help support me and my family through this difficult phase of uncertainty.
This was a very unfortunate incident that my family has to go through.
My Parents was visiting us on a Super Visa and living with us from last 1 and half year . My father got a minor Heart attack and was taken to hospital and was admitted in the hospital for 10 days. He recovered from that situation but once he's back from hospital on the very second day he again got heart attack and could not make it to life.
We were very much dependent on the Insurance they got for their stay in Canada. But the Insurance refused us to pay the claim and are giving false excuses.
We are going through financial as well as emotional loss that cannot be recovered. I am listing the expenses we have to bare during that time.

$4200 each day for the hospital expense plus the doctors disbursements and I lost work for over 3 week.

Kindly help me out as much as possible. We will greatly appreciate any help , even a small help can add up to reach the goal.