Marine Radio Super Store South Africa, do they exist?

I have ordered and paid for a Banten VHF radio antenna on the online shop of Marine Radio Super Store in Cape Town, South Africa. On 03/11/2022 the payment was done, and I received a confirmation from PayPal the transaction was successful. I have tried to phone them, and I have been sending emails to them to get in contact with me regarding this order, but as to date I have heard nothing from the owners of Marine Radio Super Store. I am beginning to think that this website/store is a ****.