Very poor customer service. I purchased 2 consumer units from Toolstation. Both turned out to be faulty, but we did not realise this until a day had been spent wiring them in. They both contained faulty RCCDs (4 in total). I asked Toolstation to replace 2 of the faulty parts and credit me for the ones that I was returning and would have to replace elsewhere (because Toolstation did not have the parts in stock). They insisted that I had to unwire the consumer boxes and send them back for a replacement or refund and referred me to their smallprint. Next time I will be shopping at a local wholesaler rather than using a company who clearly have no regard for customer service or satisfaction