WTA were helpful over the phone when advising the type of wheel clamp to buy for our new trailer. The Bulldog clamp has to be adapted to order by Bulldog, for the size trailer we have. It arrived quickly, but unfortunately had been made incorrectly. WTA offered a no quibble return and apology, despite it not being their error and arranged for a replacement to be made and delivered. Unfortunately this coincided with Bulldog undertaking it's summer fortnightly closedown, so it was a further 4 weeks before we received our correct clamp. WTA also double checked it fitted to a trailer wheel before calling to tell us it had been delivered. Sadly WTA hadn't popped up on my internet search when looking for the trailer, so we paid more elsewhere for it; however I will be purchasing the remainder of the accessories from WTA.