Limestone Paving Cracked and Fallen Apart Quickly

[jevons80]

Hi all,

the limestone paving to the steps to the front of my property are cracked and broken. the building is 3-4 years old and the cracking 1st appeared last march but deteriorated substanitally since last november. i have spoken to the builder who said it is a material issue and suggest contacting the supplier direct however just wanted to see if anyone else had similar expiercence or know of any other possible cause for the detriroation.
thanks
in advance

[welsh brickie]

It looks like a fault in the materials to be honest