Reliance Jio Infocomm — jifi 4g voice

I have purchased jiofi 4g voice device and i have subscribed for a prepaid plan of rs. 399. As per the terms of this plan, i am supposed to get 1 gb data per day at high speed. However, the data gets exhausted without even using it. Suddenly i get a message that i have exhausted 90% of the data. Within next few seconds it notifies 6.14 kb left.
Many of my friends also complained about the same problem. If this is not resolved i will not continue with jiofi and switch over to other service provider. Many of my friends may also do so.