Absa Youth Benefits not received.

My kids have Mega U accounts and they were promised benefits with it. Every month I have to email numerous time to get the free data. The USSD code never works, so where are the rewards you advertise when we open the account? I spend so much airtime & time every month calling & emailing. Same story this month, I'm really getting tired of Absa & same old stories all the time. Surely you can see there's a problem if we need to call & email every month for benefits. Why are you not fixing the problem? Now I have to explain this to my kids coz they're expecting their data - it's really disappointing.