ok well looking a little further in to it, from the archives we have
Medal card of Price, Albert
Corps Regiment No Rank
Liverpool Regiment 6357 Warrant Officer Class 2
Labour Corps 39921 Warrant Officer Class 2
Royal Defence Corps 83485 Warrant Officer Class 2
and as you said the actual card says the same
we're probably missing something very basic here, we know he was in the RWF BEFORE the war, we have been looking for his RWF involvement in the war
i would suggest he served his time with the RWF but didn't re-join them (in 1914) and re-enlisted with the Kings
when you contacted the RWF did you specifically ask about WW1? it could well be they did exactly the same as us and just looked at the war records not his prior service in the regiment