This means that you can reject an item for any reason even if there is nothing wrong with it.
If the item you have bought is regulated by the Consumer Credit Act because you have bought it with a finance agreement or on hire purchase, then the cooling off period applies wherever you made the contract.
However, – in particular if you think that an item is defective, then don't hang around for an engineers visit from the supplier because you may find that you are suddenly beyond your 14 day cooling off period.Inform the supply immediately that you are invoking your right to reject the item under the 14 day rule. Once you have done that, you have then reserved your position. If you are rejecting the item because of a defect then you can agree with the supplier that they can inspect the item – if you want – but make it clear to the supplier that the 14 day cooling off period has been invoked.
Make sure you do it in writing.