OP here, just a few things:
1.New friend requests are auto accepted so be patient
2.In order to catch the Pokemon you MUST use a Master Ball
3.The raids give different items such as berries, all balls, gold caps, XL candies and Ability Capsules
4. If you don't have a MB don't worry you will get one from doing the Zarude raid, just do it again to get all the items.
5. Zarude cannot be used in online raids, battled or traded. Likely until he is officially released or another patch comes.
6. These mons can be moved to Home