Good day Im writting to complain about the Sunbake brown bread that I purchased yesterday evening at nearby tuckshop

Good day Im writting to complain about the Sunbake brown bread that I purchased yesterday evening at nearby tuckshop.It was horrible,was bitter🤦🏼♀️🤮🤮 I couldn't go back to do exchange because it was late already and we ate it because we re**** on the bread for the evening,we had nothing to eat