Bad Batch whey Protein

i have recently tried Nutritech Whey Protein as i have been told that this is the best product on the market and best money for value. i have been a supporter of Chrome Supplements and spending allot of money each month with them on supplements.i have tried the Nutritech Strawberry Whey and within 15 min i have have become very sick,i had chest pains, bad stomach cramps and diahrea ,i thought it was just my mind but he next morning i took another scoop and exactly the same effects, my wife used it that morning with the same results, i have contacted the owner of Chrome Supplements ,one of the salesman tried the Strawberry whey and he got exactly the same results, He informed me that he has spoken to the owner of Nutritech and he wil NOT leave a SOUR TASTE in my MOUTH by giving me and my wife with Hampers from Nutritech and a online voucher for chrome supplements,but nothing happened,after 3 weeks of nagging Rodney said i may go and collect a Nutritech tub from the store,now 3 weeks later still no feedback on the bad product that was sold in store neither any luck on the hampers. i believe if you give your word you should not take it back, no need for sweet talk without any action