Checkers - Sour milk and poor service to get answers

I purchased 6x 1l Dewfresh full cream milk last nigh from Checkers Ben Fleur in Witbank, upon getting home and wanting to use the milk it was sour. I tried calling Checkers BF, they did not answer my call. Thereafter I sent an email to 60/60 help centre: Ticket numbers (Ticket: *** & Ticket: ***) I got this back from checkers [ Ticket: *** ] Irrelevant - Today I called 60/60 and the person I spoke to almost immediatly cut me off and put me on to an automated system telling me to return the product (this while I am still trying to explain the issue) I then called Checkers Ben Fleur and the manager was not available 09:06 I was told the manager will call me back... this is now costing me more as I have to make calls to *********** people, then probably have to drive up and down to sort their poor quality issues. - I have also sent the complaint to Dewfresh let me see if they give a better service