Double tagged had to pay again !!

On the 3 July 2015 at 6:59 my son's card was tagged and at 7:03 apparently rag again. Why is the same card allowed to tag at the same terminal twice in such a short period. When I asked the consultant at the help desk for the trip sheet she only turned her back to me and went to the next customer. I had to pay an additional R 26. 00 to get out of the station because they stole my money in the morning. Then the so called consultant says to me it is my own fault for letting my son tag his own card. That is part of the fun? Then I want to reload my own card for the month and get told there are still 8 trips left and if I load now it will cancel the remaining trips. This is new! Was never a problem before. I know it is only R 26. 00 but I paid it twice. This is not the first time I receive such horrible service at rhodesfield