VRBO payment tracking

VRBO allows guests to make payments leading up to the cancellation deadline. This feature increases bookings as guest feel like they can afford a stay better with smaller payments, however VRBO is horrible for hosts to be able to track this, we get an email when a payment is due, but need to manually go and check that payments were all made prior to check-in. I would LOVE a feature that would check x days prior to check-in if the booking has been paid in full, alert me if not, than automatically WITHHOLD all further check-in instructions until that booking is PIF or cleared by the host