Tapis performance gris / gris clair Corraline Gridwork

The rug is the perfect tone of gray with a subtle pattern which we wanted for our covered back porch with our wicker furniture set. Unfortunately, when unrolling the rug, the wrinkles were prominent half way through unrolling and the corners will not stay down. They curl up which could be a tripping hazard! I am hopeful that after a week of being on the porch with the sun shining on it that these issues will go away. But after 3 days so far it isn't happening.... Wayfair will require we pay for the return - so I'm conflicted what to do with it at this point. Disappointed since I've been trying to find the gray color with a slight pattern to accent our wicker set.