Data and airtime disappeared in 2 days.

In September 2016 I've purchased their special data bundle for R998 for 60GB daytime and 60GB nighttime valid for 12 months. When it expired in 2017 there were still 29GB daytime and 60GB nighttime left. I've purchased on the 1st of September 2017 2 X data bundles each for 50GB daytime and 150GB nighttime for R998 each for 12 months. We are using the one in our office and the other at home. We only use the data for Internet banking, e-mails and some browsing. On the 14th of December my daytime data was all gone. The office had 29GB left dispite the fact that the PA is everyday on the internet. I've purchased R1000 airtime on my old simcard. Then I've purchased 2GB for R279 for a month to do some banking. The next day all that data was gone as well as all my airtime. I went to Cell C, Ilanga Mall and asked for an itemised printout. They could only give me a printout from the 14th of December. I would like to know what happened to my airtime and data bundle but the assistant there just pulled up his shoulders.