Online order

I placed my order and i didn't even get what i ordered the worst place ever i didn't even receive my hot sauce at all and then the order was supposed to be R 240.00 in total the slip show's R 240.00 but what i actually payed was R 340.00 how the hell do you explain that never ever ordering from kfc Hercules again or from the mr delivery app because even when i leave this comment and review nothing will be done about this as usual