****** of 4G’s within 10min

Today I loaded 3G’s of Data and within less than 10min it was used up. I needed data and so then proceeded to load another 1G, which was used up within 2min… how is this even Possible????? Daylight *******! I then tried to access the option to view where my data went but it only gives the latest date to view as yesterday. Now what? I am too scared to load more data and be ****** of that too. When I called the call Centre I waited because of the high volumes of calls they were receiving. Really don’t know what to do and the bot is of no assistance.