I"ve had my trade card about 7 years now halfords were sending them out to buissnesses in the cambridge area so we just filled in the forms and the firm sent them back.Didn"t use it at first but have loads of times in the past 3 or so years.Can"t fault the tools.Only i tried to use it on a can of £1.40 de-icer last year and got nowt off.LOL well you have to try!!!!