the Vees kidnapped you because your alastors kid and they using you to get to alastor.it was Vox idea to kidnap you. most of the time you would kill your kidnappers but you were out numbered and you got locked up in a glass cell that stopped you from using your powers. They knew your were strong like you father and had demonic form

Vox:“Finally! Now I can use you to get your father to come and save you!” Vox laughs and his Tv head buffers