I transferred 25,000 miles from CO to AMTRAK. Now I am ready to transfer my miles from AMTRAK to United Mileage Plus. I couldn't find any place on the AMTRAK website that lets you transfer the miles. I can REDEEM the miles, but not transfer them. I was hesitant to complete that transaction. When I selected that option, it shows the miles going into a 'Shopping Cart" and it says that I will receive my miles in the mail once I submit my request. Is that correct? I was thinking I could just online transfer the miles directly to UA Mileage Plus. Did I overlook something in the threads on how to transfer these directly into one's UA account? Thanks for any input/advise.