False advertising and not honouring a online purchase

Makro advertised a product, I’ve placed the order made payment they sent me a confirmation order saying my payment is received and will be dispatched within 3-5 working days. After 3 days they mailed me to say the goods were priced in error and the supplier doesn’t want to release good at the advertised price, I did not do business with Makro suppliers but with Makro themselves, they have not contacted me personal regarding this only via bots and generic emails