Did not get full data bundles and unexpected debit

I took out a Telkom R99 for 10Gig deal on the 9th of April 2020, we're i spoke with a call center agent were I to be debited R99 on the 1st of every month and that I will be debited in May via pro rata but I got debited 4 days after that call R149 with a tag of Admin fee that I was not inform of. The second problem as soon as my aim SIM card was activated I checked my balance expecting to get 10gig for smart broad band data + 10gig night surfer but I got 3.75gig of data

I have been logging this on their website but no feedback