Has Anyone Successfully Delivered Their Shipment Directly to an Amazon Warehouse in Riyadh?

I'm currently exploring more cost-effective and efficient ways to manage my inventory and fulfillment process with Amazon FBA. Given the complexities and sometimes the high costs associated with shipping, I'm curious if any sellers have found a way to bypass traditional shipping methods. Specifically, I'm wondering if it's possible for a seller to deliver their inventory to an Amazon warehouse directly.

Has anyone here successfully managed to do this, or is it strictly against Amazon's policies? I'm aware that Amazon has very specific requirements for how inventory should be delivered to their fulfillment centers, including the use of approved carriers and the necessity of scheduling appointments. However, I'm interested in hearing if there are any exceptions or special circumstances where Amazon allows sellers to bring in their shipments personally.

Thank you in advance for sharing your experiences and advice!