Your urgency, quantity and specificity of your CD-R manufacturer is going to make things difficult for you. What is the reason for such an urgency? For most people requiring such large quantities, they usually know well beforehand.
If you live in the US, July 5th is a holiday for a lot of companies. I don't know if TY has a US office, but I can see why they didn't return your call. I can't imagine any local retailers carrying that much quantity of TY media in stock for you to buy.
So your best bet would be to try one of the online retailers. And you'll probably have to pay extra for overnight shipping. I think www.rima.com
sells TY CD-R's.