I want my money back

I've placed an order on the 11th of April under my name paid for it even choose the courier guy option paid extra money totalling R600 as they said it takes 2-3days. Then placed another order on the 12th of april under Calvin chose the paxi option totalling R580. Still today i haven't received any of my order when i request for help they're blue ticking me on whatsapp even went to an extend of send the guy screenshots on whatsapp of my payments he just blue ticks me.