Reliance Jio Infocomm — wrong data usage

Address:

Lucknow, Uttar Pradesh, 226003

I am using reliance jio 399 plan which provides 1.5 gb data every day. I mostly do facebook and whatsapp and rarely run any videos as i have regular office. Everyday my 1.5 gb data goes away in like 1 hr without even using it. On complaining they say that you must be watching videos or any update must be running on background. Yesterday only in the app it is showing that i consumed my 1.39 gb at 9.23 am however at that time i wasn't even using my phone. I got the message at 12:19 pm that i used 50% of data that means 750 mb and on another 10 minutes my whole data got consumed at 12:37 pm. Looking at the message and the usage details in the app shows that there is conflict in data. I was downloading a software of 2 gb at around 12 pm but in only half an hour my whole data got consumed and i wasn't even able to download 500 mb of that. Then i recharged for additional 5 gb coupon and tried to download again. Where all this 1.5 gb data going on regular basis? Why can't they provide details of where it has been used? It is a clear fraud on the name of free data.