Trash

I normally get 10GB of data every month. I was surprised when I checked my balance today 04 March 2020 and its was 0mb. I called telkom and the lady who assisted me told me to check my data usage which is 1.64GB but she says that it shows that I have used up my data. I get this every month and sometimes it even expires to my surprise in just 3 days its 0mb and I didn't even use that much data