How do you stop Rover.com from charging Extended Stay rates for a standard Drop In Visit?

I have 4 dogs (2 are puppies) and I have booked drop in visits on a few occasions when I have obligations that keep me away longer than a normal work day. http://Rover.com has been trying to charge me for extended stays for each of my 2 adult dogs every time I book. I never request anything other than a standard 30 minute Drop in visit, I can't even find where I would request an Extended Stay on the app. This is becoming very frustrating, that additional $10 makes a huge difference when I'm already paying puppy rates for nothing more than opening the kennel and letting them out for a bit. There is no "clean the kennel" my puppies can almost make it all day without accidents so there is no mess in the kennel.