It is a subject of laughter here .... Nothing happens quickly here in MId Wales!
They probably will get back to you but there will be no hurry.
Do you know Coed y DInas, Welshpool? Google it. They have a poultry sale this Monday I believe. Just check on their website. It will be Millwood poultry. We have bought pekins, black rock and warrens from them with no problems. You can buy on the day or ring or email to reserve. It does get busy during the day.
Or try Cyril Basons, Craven Arms. They will deliver or you can collect. You may have to wait a few weeks because they sell in batches ... They are a big supplier rather than smaller breeder.
HTH