RAINBOW CHICKEN

I bought 2x 2 kgs of rainbow chicken last month and the chicken did not taste right at all.The expiry date was not very clear but it looked like 2016 some time.I brought this to the suppliers attention via email and received an automated response with their contact numbers.I've called the number a few times and left voice messages but to date nobody has bothered to return my calls.I really want to know what was wrong with that chicken.I think its a bit too late to get hold of a bag from that batch.