Your Black Friday backlog.....not my problem!

I've upgraded on two of my vodacom lines on the 6th Dec via their online channel. The service experience related to theses application has declined, not sure why I decided to upgrade? I've never experienced this poor service previously, In the past would upgrade and receive the device within two days. This time round there was no communication, I was advised that a consultant would contact me within 42 hours after upgrading online which never happened. I had to follow up on the 9th Dec and was advised that the order was still being processed. I then received an sms advising a way bill number will be provided to track an order and the second device was out of stock (this wasn't mentioned on the site, prior to upgrading). No sms was received. Today 11th Dec I called through to discover that the devices has not yet been dispatched from the warehouse and that I could expect delivery in the next two days. I then called the online upgrades as referred by the call center agent to attempt to expedite the order as I'll be out of office on Friday I was then advised that device might not even be delivered this week. Highly disappointing; If I had known that this was the case I would have visited a store directly. I ordered online with the expectation I'll receive the devices before the 13th, the consultant advised delays are due to black Friday, why Vodacom never had any contingency in place is just poor operational management.