It can be a problem when a rep moves jobs, even within the organisation, but CM isn't informed, and still lists the defunct rep as the point of contact.
If a rep fails to deliver, there is always the PAB route, which should be taken BEFORE you start posting issues in public.
Max or CM often discover that a rep is no more when issues come to light, and attempts are made to contact the casino regarding a PAB.
Palace Group changed the term to be a percentage of STARTING balance, so players only have to work out their maximum allowed bet at the start, and keep under it until they bust or cash out.