Bad service

I app**** for a cellphone contract online at Vodacom last week Thursday 14th May, I received an email just after saying my application has been approved and my phone is on its way. This was great, fast and efficient I was obviously impressed. By Monday 18th MayI still hadn’t received anything so I emailed customer service. I waited all week for a reply and finally got a reply on Friday 22nd May to say that they do not have record of a new application for me on their system and that I should contact direct sales. My complaint is that I have it in writing that my application has been approved, why do they not have record of it. Secondly if it has been approved why is it taking so long for me to receive the phone and thirdly why is their customer service so bad that they could not check with direct sales for me instead of just referring me to someone else. This is highly disappointing, I thought that Vodacom would be a good company at which to place my business but they are proving otherwise.