False Marketing

I am a customer of MTN for several years and always believed they were the best network but after numerous calls over the years and finding that their employees are not well educated with the product knowledge of the network today I see that I think I have had enough. I dialled *141*2# to buy a data bundle for 24 HRS and on the USSD it stipulates R40 UNCAPPED. As I am from telecomms I called 808 to verify this and was advised by a very helpful lady who advised that the bundle is NOT UNCAPPED and after I would use 150MB thereafter I would be BILLED for further usage. I am appolled at this as I believe this is false advertising and this is to trick customers. I would really appreciate a reply as to when the USSD will be corrected so non of the MTN customers fall into this trap.