any recommendations gaz coilovers refurb near swansea?

[cookracing]

Bit of a long shot. Talked to gaz in essex they were helpful-my rear dampers are squeaking and one has lostall oil and is now useless. Can anyone recommend aomewhere local who have experience re oiling and replacing seams on gaz golds? Or is the only option to courier them to and from essex?
Ta