Recently I posted the First bank Link for Linking your BVN to your GTbank Account, or Your GTbank Account to your BVN.. any way you put it.. easy steps that requires your BVN number, the bank name registered with and your GTbank Account Number.. As simple as possible
Visit
https://gtmt.gtbank.com/BVNLinker/start.aspx to start
And
You Can Also Log in to your internet banking page and follow the given instructions for linking.