<p>An existing account was found with this email address but it is not linked yet.</p>
   <p>The accounts must be linked before you can log in.</p>
   <p>An email should have been sent to your address at <b>{$a}</b>.</p>
   <p>It contains easy instructions to link your accounts.</p>
   <p>If you have any difficulty, contact the site administrator.</p>