Incorrect Data loaded

Hi, I currently have a smartboradband Telkom mobile router and I wanted to load the 500GB deal for R50 but could not load the data on the self help portal and thus requested to chat to an agent online and requested that she assist with purchasing the data which she did, however she loaded 40GB anytime and 40 GB night time for R450. As soon as I realised that there was an issue I called to rectify this error and they said a case was logged and I even received a case number # ********** 5, this was on the 15th. Today I called to follow up and they told me that the case was only logged on Friday and I have to wait 72 working hours to get a resolution. In this period I cannot use my router and I constantly have to purchase data which gets costly over time as I am forever on the internet as I'm busy with exams. Please assist with fast tracking this issue?