>>17041749Get the mons back on your carts and delete the Ranch data. Then restart it and put the mons back on (you can get around the X mons per day limit by changing your Wii date settings) until you got 999 and Hayley makes the offer again.
It's tedious, but My Pokémon Ranch is a 100% legit way to farm Mew (and Phione, but who cares about those).