Night surfer data ****

Good day

Ive received night surfer data on a recent purchase . I decided i will update my phone using this data woke up real early and started to update my phone 5 minutes later i received a message telling me that all my normal data is almost finished on the phone with customer support they tell me sorry but i must restart my phone first then make sure my data is on night surfer data then phone customer support before commencing the downloads i find this unacceptable and they dont tell you this when you get it .so i asked for a refund of my normal data used they just say they cant do it as o shouldve made sure the wrong data is being used . Is this acceptable to pay for stuff but you cant use it surely something can be done from their side to fix the problem but no help and no manager to help baddest service ever from telkom