Reliance Jio Infocomm — unwanted billing generated, misguided and wrong information shared by jio customer care

Address:

Mumbai City, Maharashtra, 400037

I have a jio postpaid no. I have recharged 99rs prime membership, 400 security deposit and 303 pre on post recharge after customer care representative confirmation.
In july 29 i have made a recharge of 399, because customer care representative told me that if you make 399 recharge then it will be your base plan no postpaid monthly billing will be generated.

Now jio has generated my aug month postpaid billing of 300 rs.

When i have asked them via mail or calling to customer support to know why billing has been generated when i have recharged 399 pre on post after confirmation only on it will be my base plan and no billing will generate.

They are saying nothing can be done i have pay the bill.

Why i have pay bill, when wrong details to shared from their end.

Kindly take my complaint and escalate this complaint