Originally Posted by
abaheti
I found my post in this thread
https://www.flyertalk.com/forum/34796149-post949.html
I chose the charged more than expected. After submitting I also send a secure email explaining the issue and math and referencing my dispute. They did reply to confirm the credit would stick.
You used reason code 12.3. Looking that up finds
https://www.chargebackgurus.com/char...essing-errors#
Your language looks good, especially since it worked