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Unknown error code

Explorer C


 I recently booked a flight for 8/6-8/9 and I signed up for the chase credit card to receive the $200 credit towards my flight, but last night I needed to change it to 10/29-11/1 and I keep getting this error code that my phone number is not updated that is linked to the credit card. I tried logging in but can’t find anywhere else to put my phone number. Can anyone help with this?


Re: Unknown error code

Aviator A

Log into your account on and go to:


My Account > Payment


See if your credit card is listed there. I don't see a place to enter a phone number along with your payment method, so this may be something you need to update on Chase's end.


On you can also double check that your phone number is entered correctly under:


My Account > Profile > Personal