Cheating Takealot

Takalot recently advertised a special offer on Maxwell Williams mugs. Buy four and get R10 off. Stupidly I paid the full amount and thoughtTakealot would adjust the costst and reund me. When I wueired it< i was informed that the orrer was only on two mugs per customer. I copied the offer and sent it to them. Since the I have had two emails advising me they were lookin into it and then a week ago that I would receive a refund soon. NOTHING HAS HAPPENED. I have emailed them again and had no reply. Whilst I apprecaiate the amount is small, isurely what they advertise they should honour and not giove a completely untrue excuse.