When you went on the VCA website, did you log into your account first? I'm in the USA and after I sign in with my account information, I click on the image in the top-right corner that looks like a person icon. Then click My Services. If you've purchased any items that have been sent for alteration they'll appear. But you have the ability to click Request a Service. Next, choose Adjust a Creation. It will then ask what type of item (bracelet. earrings, necklace, etc). Select the appropriate response and then you should see the button to click on to enter the serial number. The key to getting this to work may be signing into your VCA account before you start requesting service.