Having picked up a W204 C63, I tried to register on the AMG Private Lounge to see what that may bring. https://www.mercedes-amg.com/privatelounge/registration/login?lang=en On filling out the registration form, the site did not accept my VIN number as being an AMG and indicated they would confirm that within a few days. I've not heard anything or had any emails since. I also cannot re-register as both the chassis number and my email address are now flagged as in use on that site. How long should I expect this registration process to take?