Vodacom - Wasp apps

I've noticed over a period of time, that my airtime keeps disappearing and I am continuously running out, despite rarely making any phone calls. After some investigation, I discovered that there were two Wasp apps linked to my account, which I never requested nor authorized. I eventually managed to cancel and block any future unwanted apps. An absolute nightmare trying to deal with an *********, opportunistic and parasitic telecommunication service provider.