Have not received an email with a code to track my delivery with Orange Mobile?

I ordered an iPhone 4 from Orange (New contract) and they sent me a confirmation email saying that my package should be delivered on thursday morning by 10 am. They also said that when they send the package out they will email me with a tracking number. I have not had an email with a tracking number as of yet. And the package is due to arrive by the morning. wondering if anyone would have any experiences like this. Or know what could be happening?