Polo South Africa is the worst online shop

Very dissapointed with the recent service I received from Polo South Africa. I ordered 3 items, was told 1 item had been oversold and would thus not be included in my package and I would get a refund. To my absolute surprise, when my package finally arrived after a long delay, only 1 item was in my delivered package. It’s been 3 weeks, I’ve been asking for my refund, still nothing! Zero communication, zero feedback, zero updates! It’s so sad because I’ve been using Polo for a while and they always kept a high standard with regards to online purchases and delivery, but now it seems like they have dropped the bar so low. This is absolutely frustrating and I don’t know where to go to finally get some assistance and some answers