Someone was sent away from the DLT here last week trying to renew his licence on a WP. Told to get a residence certificate. I know the yellow housebook is useless here for anything. I've seen reports from other areas that was accepting them now refusing them if they are over a year old.
I don't know about a WP for licences in your area. They just simply want foreigners in Chonburi to have residency certificates. I think they all make it up as they go along to be honest