To customize your store URL. You’ll have to contact support to get started. Log into your account where you created your store. We made ours in seller central, so we’ll be logging in here once logged in, go to the store manager and scroll to the bottom and click on, get support at the bottom of the page.show more
You’ll see a contact us button, click here and then choose advertising and stores from the menu. Another store has dropped down, select other issues and include in your contact reason that you would like to create a custom URL in the body of the message. Explain exactly what you would like to change your custom URL to be, and then click send.
If this is urgent and you need this URL to be made for marketing purposes, you can notify Amazon that this is urgent and then support. We’ll get back to you more quickly.