Unlinking a contact from Tact is simple, follow the instructions below.
1. Go to your Contacts Tab
2. 'Tap' on the Contact you'd like to unlink.
3. 'Scroll down' to the bottom of the contact. You'll see all of the contacts that are linked to that contact.
4. 'Tap' the contact you'd like to unlink.
5. 'Scroll down' to the bottom of the contact and 'Tap Unlink Contact'
6. You will then get a notification that the contact has been unlinked. 'Tap' Ok
Hope this helps!