Bajaj Finance — extra premium charged on policy

Address: Pune, Maharashtra

I am a bajaj finance customer. Team from bajaj finance contacted me two years back for a health insurance policy. They shared that they have an exclusive health insurance policy for bajaj finance customers in which the policy will be covered for rs 10 lakh for my family (Self, wife and two children) and will have fixed emi through out the life. They said that its a recorded call and all the details which are explained to you will be recorded and in case of any discrepancy in future, you can refer to it. Based on the fixed premium concept and other explained benefit, i have taken the policy.
Now for last two years, the premium was same but now they have increased the premium by almost rs 4000/= when asked for the details, no satisfactory answer is given and also they are not ready to share the recording in which we agreed for the fixed premium. Now i am wandering here and there and the bajaj team is just passing the ball from here and there.
If you go to the branch, they do not even listen to you.