Extremely poor customer service and complete lack of communication

On 17 Jan 2021 I ordered some drone spares, including 2 batteries, on their website. The website stated that they had stock, however they did not. As there seemed to be a country-wide stock shortage, I accepted that I would have to wait. In April some other suppliers received stock, but not Drone Parts, and despite promises that they would source the batteries I eventually bought them elsewhere and asked for a refund from Drone Parts, to which the agreed. Since then, and despite assurances and promises, and having provided my bank details no fewer than 3 time, I’m still waiting for my R1700+VAT