EATING MY MONEY FOR DATA AND NOT GIVING ME THE DATA!

It should actually be a zero!!! i bought THREE gigs of data yesterday the 10th of September, my phone did not work yesterday on mobile data AT ALL! today the 11th of September i had to buy two gigs and its going like damn water! i want my money back fir the 3 gigs!!!!! and u can rest assured I WILL NOT REST UNTIL I AM ASSISTED TO MY SATISFACTION!!!!!!!!!!!!!!!!!!!!!!!!!