It seems that the shipping FAQ on the RS Components Raspberry Pi website may be wrong or out of date and it is possible that RS are not be shipping all orders in the order they were received. One order we know about, placed and paid for almost 3 months ago, was only processed and shipped after the delay was queried. According to the RS FAQ it should have shipped in late August and their customer support team are still mailing the same shipping information out to customers who query delayed orders.
If you are waiting for RS to ship you a Raspberrry Pi we suggest you double-check your order number against the FAQ and, if overdue, contact RS customer support.