Office politics: Why Jody Wilson-Raybould doesn't really have a choice about moving offices - 2019-12-13
What if an MP really, really doesn't want to move?
Tough luck, basically. MPs can be asked to vacate their office for a member of the same party or a different one, and they're expected to do it without fail. If the MP's own party wants to reassign them, they can try reasoning with their party whip, but there is no appeals process.
Chapter six of the House of Commons Procedure and Practice mentions two cases where MPs tried and failed to overturn a decision regarding the reassignment of their offices. In 1991, Louis Plamondon raised a question of privilege over the matter after he left the Progressive Conservative Party to form the Bloc Québécois and lost his office. In 1997, John Nunziata, a former Liberal MP, was reassigned office space by the Speaker "against his will" after he was re-elected as an Independent.