SALES AGENTS DONT KNOW WHEN GOODS WILL BE DELIVER

I was contacted by Vodacom Direct on Tuesday 30 June 2015 by Mitchell for an offer of a Vodafone Tablet and 2 Gigs of data for R129. I ordered 2 of these contracts and he told me the goods will be delivered within 3-5 working days. I told him that I would not be at work the Wednesday 1 July 2015 and Thursday 2 July 2015 and asked him whether he was sure they wouldn't deliver as I can give him my home address instead. He assured me that they would not deliver on those days. I called them today to track my order and they tell me that RAM tried to deliver on Thursday 2 July after the sales guy told me they wouldn't. Now they say I have to wait 3 days to resubmit my order and this is clearly not my fault. My kids are waiting for these gifts as it's their birthdays and now I need to wait 3 days to reorder and 3 more days to deliver. This is nonsense as I feel it's not my fault and my goods should be delivered tomorrow!!