Cashkaro.com — whole cashback amount of rs.3000 is missing in account

I have made transactions using my icici card and was able to see the accumulated cashback of rs3000 until jan 21, 2020. All the money shown is confirmed cask back with a payment due date. Suddenly my balance become zero and after contacting them 2 times and waiting for almost 2 weeks, i was again asked to wait for 2 weeks and i was told it is issue with icici bank. I would like to get the issue resolved so that i can claim the cashback as the payment due date.