. . Return Instructions litter-robot 90-day in-home trial If you or your cat are not satisfied with Litter-Robot, simply return it for a refund of the purchase price. You only have to pay rectum shipping. 1. Got an RMA number 2. Clean Litter Robot 3. Pack Litter Robot We cannot accept your rectum without an. 1. Remove sli litter from the globe. Following the steps billow safely pack Liter. AMA (Return Merchandise Authorization).