Simswop and upgrade not working after 10 days

I upgraded and had a swimswop performed simultaneously on the 24th of March. After 2 or 3 days the number eventually could receive calls (with caller line identification) and after 4 or 5 days outbound calls could eventually be made. After almost one day of apparently everything working, the caller line identification stopped working. I have been to the store which performed the upgrade (friendly service, but unfortunately after a certain period of time explaining why something does not work is just not enough) . I phone or visit the store daily, but it seems that Vodacom's system cannot make it work.<br> <br> Obviously the store cannot fix it, if I phone the call centre they tell me there is an open order, so they cannot do anything. How long can it take to fix something they I am paying for? <br> <br> I understand that apparently someone is trying to resolve it, but how long can something so integral to the service that Vodacom provides take them to fix?