Hello! I’m having the exact same problem with my bunny Coco. He eats his pellets, greens and treats but HATES hay. I’ve tried Meadow hay, Timothy hay, Oat hay, Orchard hay, and much more. He also tried different brands of hay such as One Ear Up (someone on Binky Bunny suggested it), Oxbow, Kaytee, Vitacraft, etc. He hates all the brands. Finally, I came up with a few tricks to get him to eat his hay. First of all, whenever he gets his veggies, I wrap some hay around them and hand feed them to him. That way, he has to eat some hay in order to get to the vegetable. Another thing I did, was not feed him pellets for 2 days, and finally he ate a little hay. Another thing I did, was stuff hay into his favorite toys and while he was playing with them, he ate a little hay. Lastly, a few days ago I went to PetSmart to purchase Coco some toys and treats for Christmas. So, I picked up a pack of Timothy Twists which are made with 100% pure Timothy hay. I have one to him and he LOVED it. Except, the only downfall to these are that they are a little pricey. But anyways, I think he enjoyed them because they were put into a “toy” form. I guess he is just not really fond of loose hay.