Airbnb asking me to issue refund

[Kyler J Sloan]

I am curious if Airbnb has tried to compel other hosts to issue a refund in spite of your policy. Has this happened to anyone else? 

I had a guest who did not bring a 4WD in spite of my 4WD requirement (with chians in the winter), and seemed to agree that the fault was her own for not doing so, and that everything was fully disclosed in the listing. 

A couple of weeks later, I got a message from Airbnb attempting to get my consent to issue her the full refund "before they start a process". 

Any ideas or similar experiences? 

What can I expect if I say "no"? 

Thanks in advance for any feedback.