On eBay, store subscriptions are associated with a specific site (such as eBay.com or eBay.co.uk). If you want to change the site you subscribe to, here are some possible steps:

1. Log in to your eBay account and go to your store page.

2. On the top right of the page, click your user name and select "Account Settings" from the drop-down menu.

3. In the Account Settings page, select "Site Preferences" or a similar option.

4. On the Site Preferences page, you should be able to see the sites you are currently subscribed to. Click "Change" or a similar option.

5. On the page to select a new site, browse the list of available sites and select the new site you want to subscribe to.

6. Confirm the changes and follow the instructions on the page to complete the operation.

Please note that changing sites may involve some restrictions and conditions, depending on your eBay account type, region, and other factors. In addition, after changing the site, you may need to reset some settings, rules and options to adapt to the new site environment. If you encounter any problems, it is recommended that you refer to eBay's Help Center or contact the eBay customer support team for more accurate and detailed guidance.