ITS BEEN A SOUR NUTRIDAY

im a very good customer of c***** products,i have daughters 12,16months and i give them 2 of the 6pack nutriday yohgurts per day im so utterly disapointed in this product as for a week ago i bought 3x6pack nutriday yohgurts from Spar Greenhills Randfontein and all of a sudden their tummy starts to run really bad.i looked at the BB date and all was still fine and looks good but 2 days after the runny tummy started something told me to actually try the yohgurt maybe that could be the problem but me having so much trust in Nutriday i never thought this could have been the problem well i had a bite and it was totally sour,did not look or smell funny but the taste was awfull!!!!!!its been 3days without Nutriday and their tummys are fine. . .HONESTLY NUTRIDAY YOU LOST A VERY GOOD CUSTOMER AND THINK MANY MORE EXEPT MYSELF. . .