Telkom airtime not allocated after loading via cellphone banking

Telkom is utter *******. Whenever I load airtime via cellphone banking the airtime is deducted and shows on my balance but I can never use it to make calls or load data bundles. I always get an error that I have insufficient funds then the airtime shows on my balance!!!!!!!! Then you take the very same airtime that your system claims is not there and use it for out-of-bundle rates when I go on the internet!!!! What nonsense is that? To top it all up, none of your customer care lines work it just cuts the call and asks me to do the request on WhatsApp, Who said I even have WhatsApp associated with my Telkom line. This is just ridiculous. None of your online platforms are helpful either!!!!!