Sim swop at Vodacom Menlyn: Worst experience ever!

Waited at Vodacom shop for 15min in queue, when in front person behind counter says they are out of stock (how can you be out of sims at a cellphone shop???), need to go to Vodashop on level 1. When at Vodashop on level 1: wait 1 hour before someone helps me. Did the sim swop, provided all necessary documentation, did payment...was promised that new sim will be active within the next 3 hours...it is now 33 hours since then - NOTHING! <br> New sim worked for couple of hours, then just got error message: \invalid sim". Phoned Vodacom call centre 4 times"