Webafrica - Useless

Webafrica offered us an upgrade to a 20/20 line for an extra R90p/m. We were then told it would be active within 24hrs. The line has not been upgraded (going on 13 days now) and we cannot get hold of anyone at Webafirca. You cant phone them, it takes hours via whatsapp, and all they can say is "I will escalate this to the manager". I have been told it will be sorted out in 24hrs for the last 2 weeks by several different people. I have submitted at least 10 call backs, with no call back. Webafrica has also now charged, and OVERCHARGED us for this non-existent service. They offer a 3rd party service, why do we even need them anymore?