You need to complete the following steps to link your eBay account,

• Select the Live Account option (selected by default)
• Select the country in which your seller account exists
• Click on the connect button once you’ve selected the first two options.

• Once you click on connect, a popup box will be open asking to confirm to Redirect to the eBay website. Click the Redirect button.

You will be redirected to the eBay website on which you have a seller account.

• Enter your eBay credentials and log in to the account.
• In the case you do not have an eBay account yet, register yourself and create your seller account.