MTS MBlaze Ultra Wifi — data usage of my MTS dongle, no.[protected]

I have purchased MTS wifi on 09.05.2015 in mysore city, Karnataka.At the time of purchase i was provided with 10GB data.My next recharge due was on 11.06.2015.I have recharged my dongle on 12.05.2015 for Rs, 499.00, 3G, 5GB.but on 19.06.2015 i recieved a call from MTS to recharge it again, &i informed them that i had recharged it already, they diconnected the call.Later on 20.06.2015 all the 5GBplus 5GB balance was zero.I want to know how 10GB of data was used in 9 days.I wish to obtain the data usage in itemised version.I hope that yourself would do the needful or else i shall return the device to the seller.Thank You.