Purchased bundles but i can't connect

i bought 2 gig bundles on the 31th of and on the 4th i had 1.78GIG which it stopped connecting and started using my airtime. when my airtime diplited i couldnt connect anymore. i called FNB connect in which they toldt me they escaleted the matter to cell c for reasons known to them. i made a follow up on the 6th and they dropped my call , i called again on the 8th and 9th but my call was dropped again. called on the 10th and asked to talk to the sinor who i was told they have no time for me and they dropped my call. i didnt sign up with cell c but with FNB. i want my bundles back so i cant port out in peace and get a network who care about thier customers and all close all my accounts i have with you guys. my number is ********** 188 alt number ********** 019