Solar Power International are scam artists

SCAM ALERT! Ordered 2 lithium ion batteries. Paid via EFT. Goods weren't delivered within 2 days. When I enquired about delivery, I was told by 'David' that the courier company hadn't collected my batteries. I asked for a physical address of the warehouse and sent my own courier company to the address provided. This address provided is of a storage facility in Centurion and according to the manager of the storage company, they never heard of Solar Power International. It doesn't exist! I've tried contacting Solar Power International several times since then but they've blocked me on whatsapp, pulled down their website for 'maintenance' and the telephone number suddenly doesn't exist. Classic scam artists.