Reliance Jio Infocomm — i'm unable to terminate my postpaid jio connection, feeling helpless!!

Hi,
I had purchased the jio postpaid sim and was trying to use it for the internet. It has been hardly useful and had so many issues that i changed the sim twice. Post that also i had no success. So, i decided to close the connection. Both jio call center and jio stores have not been able to help me. Hence i would recommend all the proposects to think twice before you take up such connection. You may end up in paying bills when there is no service provided.