Reliance Jio — internet service

Address:

700051

I am holding jio number [protected] and under the plan of 399 in which offered service is unlimited call and 1.5gb, 4g data. But their data service worthless. They not providing 4g internet service, even they unable to provide 2g. Very very slow fluctuated internet service. Even unable open a web page. They also deducting data balance even when my phone is switched off.
I have complained to jio customer care on 1st june 2018. Complain number is sr 00000 lilia but no response. Whenever further i call to customer care their only solution is they are explain the cause of over subscriber of jio, but no solution. Customer care representative also told they have nothing to do but only giving information. Please suggest what should do in this hopeless situation.