Horrible treatment

I bought data when I tried to load it on my phone I noticed that the numbers were missing as the slip was wet - when I called the service desk I for them to allocate my data as some numbers were missing. This lady told me that I have to go back to the store where I purchased my data - they can not check it for me - their system isn't allowing them to do so - what a bad service ! I told this lady that I was on my way to eastern cape I purchased the data at Cosmo city family store in Gauteng she couldn't help. I find it very strange in these times with so much tech that they can not check my missing numbers. So I have lost my 2gig data just like that!