mouldy walkers chocolate turkish delights

i baught 3 boxes of these kind of chocolate biscuits,got home opened one of the biscuits and they were all mouldy,didnt take much notice of it and just threw it away,i then opened opened the other box and it was also mouldy,tried taking it back to pnp in muzinberg/capricorn but they couldnt help me because i threw my receipt away i never argued much about it because i knew that i would need my receipt,but im really upset that all 3 of these boxes was mouldy,and no its not expired yet,expirey date september 2016 only,if you would like i can send you pics of the mouldy chocolate turkish delights