Poor client service

I ordered a product in March which could not be delivered due to the payment not being confirmed timeously. When I queried a refund the same month, a few weeks later I was told that I needed to supply the proof of payment. I provided the proof of payment and got another response weeks later that I needed to provide account confirmation in order to their Finance department to process the refund. I did not get any feedback after this, and I queried again to get feedback. On the 16th of May I was told that the Finance department will process the payment in 10 business days. It's been 23 business days now and still no refund. When I log ticket with them, they don't respond. I understand the lockdown has impacted a lot of businesses, but not to even have the common courtesy of keeping to their promise of refunding me in a specified time, and to top it all of, not responding at all to my 2 queries I still have active with them??? To wait 3 months for a simple query to be resolved, who would have the patience for this??