Prices escalate when added to the cart

Makros online prices differ from when the products are added to the cart. The price on the malva Pudding changed, the price on the nandos sauce increased. I called 3 times, no one could assist, one staff member took my number, I am still waiting on her call, as for the WhatsApp platform.... pathetic. I was event told to clear my cache or try another device... guess what Makro, it didn't change a damn thing!!!