Question about Microsoft Surface Pro 4, 256GB SSD

Now it's 5-7 days again, is there no more precise information from Microsoft or is there a supply bottleneck?

At the moment, the requested Surface Pro 4 has an expected delivery time of approximately one to three days (without guarantee). We always try to announce the latest and most up-to-date dates in our online shop. Therefore, our suppliers have the possibility to enter their delivery dates directly in our system. The specified date therefore comes from the direct supplier and is always up to date.