Extremely delayed delivery

I placed an upgrade order online with Vodacom, and the online site specifically stated delivery will be free and will be next day. I placed the order on a Saturday evening, so I was actually expecting delivery on the Tuesday, as they would only process it during office hours on Monday, so next day would be Tuesday. Tuesday there was no delivery or communication with me, so I called 08211 who told me I had to call ********** 4 for online order queries. This number just rings. After a wait of approx. 25 minutes a lady answers, and just says the order is awaiting dispatch, so it should be delivered the following day (Wednesday). Wednesday no delivery still. Thursday the same 25 - 30 minute wait with the phone just ringing and then a lady answers and tells me they awaiting stock. And will call me back in 5 minutes after she confirms when they will deliver. No callback ever. I finally get an sms from the courier company, and when I call them to ask them when it will be deliverd, they say only on Friday. False advertising on Vodacom's website, and pathetic service with no customer consideration. Not once did anyone from Vodacom apologise for the delay or even show some customer facing manners. Really disappointed.