You could likely upgrade to a higher level plan (higher $) which includes a dedicated IP address. They are likely running low and no longer offer dedicated IP a

You could likely upgrade to a higher level plan (higher $) which includes a dedicated IP address. They are likely running low and no longer offer dedicated IP addresses for anything lower than their managed VPS and dedicated server packages. If they don't have any IP addresses left to dedicate to dedicated servers and high-end VPSes, then they're in serious trouble.