Rotten smelly chicken :( :( :(

I am highly dissapointed with cambridge In Johannesburg at Bree street. i bought a portion of chicken worth R90 And i has a really bad smel and taste. i even have a runny tummy because of it, and coz i was starting my diet and had it for lunch at work i had to buy food Again! May i have this rectified i am not happy at all.and i want to be reimbursed as this is not what a huge store as Cambridge should be selling to us customers. Please advise what to do . i am not happy.This food is sooo smelly at my workplace. the not cooked is at home the on ei cooked it here with me i can even pass and the store can smell and taste it and tell me if that is what a humban being should eat. I have health issues already. I am trying to be healthy and prepare my own meals and this is what i bought . i am highly disappointed. . Gastro and a lot. This is totally wrong. I am not happy. Cambrigde is ****ing us .