OAKSPRING BAD EXPERIENCE

I have went to spar at Starwood in phoenix and bought a oakspring yogurt the 1liter on the 18-08-2019 I go home and only to find out that the product is not expired but its off and I have consumed the yogurt which has made my tummy twist and upset I have called the number that's on the container but I must keep calling them for an update and so on I must tell them what to do I have the product at home still that's off and I am very disappointed with the fact that it was poor customer service and also did not get any joy from them please assist my name is rowen pillay and contact number is ***

details from the product is as follows *** www.oaksprings.co.za