The way Phil hubs are designed and assembled will allow for some play especially at the rim, bearing wear can also happen, as Phil has been around over 35 years, how old are the hubs?
Some play is nominal, I would measure it, fire off an email to Phil, and get their advice, I might be wrong but I think they only accept unbuilt / no freewheel hubs for rebuild. A walk in situation might be different, but the typical arbor press does not have the throat capacity for a whole wheel.
Double check, but Phil did want a return authorization number to be placed with the goods for tracking. You get that prior to sending them in.