:huh I can't find any reference to the "Customer Protection Act".
There was a Consumer Protection Act 1987
The Consumer Protection Act 1987 gives you the right to claim compensation against the producer of a defective product if it has caused damage, death or personal injury." (Courtesy of Which?) I don;t think this what you meant.
And of course there is the Consumer Rights Act or the Sale Of Goods Act.
Often these additional warranties are not worth having, its just another way for retailers to get money out of unsuspecting members of the public.