didnt receive data

for a few months i was not getting my data to work on my cellc stick. i tried it on other laptops as well as in the store. the device showed that there was no data on it. i assumed to my error that my contract had expired which is what the person at v and a waterfront said to me. i have all this time had no data working umtil i noticed that my accoumt was still being debited but i was not receiving the data! i sent an email to cellc and they phoned to tell me that my account is still going. my data has now come onto my ****le and only now after this phone call but i didnt receive the data for all the months that i was paying for it and it wasnt there. i have paid for it! i sent another email asking for cellc to either send me the data in a once off lump sum for me to use or to get monthly. i got a reply saying that the data is lost at the end of each month and not carried forward. that is totally unfair i wasnt receiving the data in the first place!! please refund me for the months i didnt receive or pleasey data owing. please!