It would be a shame if you had to send her back because of this problem. Are you crating her during the day? And how long does she have to stay inside without going out?

Honey and Lilly made it as puppies while I was away at work all day. I came home at lunchtime as much as possible, but I gated them in a safe area and just hoped for the best! Yes, I had messes to clean up on occasion, but they learned quickly, and sometimes, once they got a little bigger, I left them in my backyard on pretty days, but if there was a threat of rain, they were kept in the kitchen with lots of toys and an easy floor to clean up!

Please make it work for Lila.