I purchased 15 GB of data from Surfline on the 11t...

I purchased 15 GB of data from Surfline on the 11th of January 2020 and today 17th of January 2020 it was finished. Working 5 days a week ( Mon - Fri), which means that i am not home during the day. I also chatted with an employee and shes trying to convince me that its not about the days but activities. So what about Vodafone and MTN? I use 4GB a month with Vodafone and i still roll-over with some data.

Advice: Do NOT use Surfline because they are expensive!

I am very disappointed