Bad Service

ON the 30 January i received a call to upgrade my current Vodacom contract Via mondo telecoms on the 18th of February i decided to cancel the order due to no delivery(made appointments with your couriers and they just never pitched ) of the wifi router i needed with this contract .I was informed that the cancelation order would take effect immediately .ON the 20 th February i decided to go in-store and upgrade where i was told that there is still a open order on my account .I again call your call centre adn was againtold the same ting ,that the order would be cancelled ,i have since phoned twice more and this is still not sorted .How can it take so long just to cancel a order ?i cant do nothing now and its a massisve inconvenience .I will definitely never ever do a upgrade via Mondo or Telephonically again