Hi. If you are considering buying the pet cemetary bundle, take out and place any of the zombie pets you own on to the game. I owned both, had them stored in inventory, and lost 90 donuts on the initial try.
The game is suppose to offer you the bundle according to the zombies you have. If you have one, you should be offered the bundle with the zombie pet you don't have. It may have been fixed lately (there was an in game update recently right?).
Sorry, but I cannot verify if you can be selective on which bundle to buy. But hopefully you don't lose 90 like I did, contact EA to get the cemetery, and then contact EA again to get a refund of 20 donuts (60 minute wait times on the chat).
I have no regrets on both cemeteries and the mausoleum - iconic from Dial Z for Zombies.
Happy tapping!