Method of marking a message as spam for VRBO or AirBnb bookings

So VRBO has a typical scam request booking that comes up from time to time where a guest asks if a longer block of dates is available or not. It is obviously available. So when a host replies, the scammer has a way of discussing their scam. Previous to the integration with VRBO I was able to mark this message as spam on VRBO's webiste. However, now that I have integrated things with iGMS I see no way to mark this message as spam in iGMS or on VRBO as well, since the integration took away the ability to mark something as spam on VRBO as well. Would be helpful to incorporate this somehow to prevent other guest from being scammed, or at the least the hassle of having to commincate with these idiots. Thanks!