Make Good On
(transitive, idiomatic) To fulfill or honour (a promise etc).
Example: 2013 April 9, Andrei Lankov, â€œStay Cool. Call North Koreaâ€™s Bluff.â€, New York Times:
By now South Koreans understand Pyongyangâ€™s logic and know North Korea is highly unlikely to make good on its gothic threats.
2012 May 19, Paul Fletcher, â€œBlackpool 1-2 West Hamâ€, BBC Sport:
The result ensured that manager Sam Allardyce made good on his promise to take the Hammers back into the top flight after his team narrowly missed out on automatic promotion at the end of the regular season.