AMEX Referrals - Bonus changing after link sent out!

[Anonymous]

I have a hypothetical situation here:

Say I send out an Amex Referral when the bonus for me is 15K MR; however, when the person clicks on the link and applies (in the future) the bonus for me is 10K MR points. Even though I sent the referral link at the time of the 15K bonus, would Amex record the 10K bonus or the full 15K? 

In other words, does the URL of the referral change when there is a new bonus for the "referee"?

Hopefully someone has some insight on this! Thanks for the help

[bourgogne]

dont know but I do a ton of ax and chase referrals and I always take a snip of the offer - snipping tool on a pc..., I just did a biz blue for 15k a few hours ago, and I also copy/paste the link and I email both to myself with the app date and person I did the referral to in the subject line.  just in case.  as a side note this one place ax blows everyone out of the water, referral pts post in days vs 1-2 cuts for chase.  that said I have never had an issue with either lender.

[Anonymous]

Hopefully you’ll have a datapoint one time to share regarding offers changing up!