Online Car Parts refuse assist customer with aftersales service for refund

The most utter useless aftersales team I have ever encountered. I ordered a clutch kit from their website on 11-04-2024. They show pictures of it as an Exedy brand. Upon receiving the clutch, it was not Exedy, on top of that the clutch plate was incorrect. I then returned the kit at my own expense of a courier after I spoke to Luba who promised to collect it, which a week past and they did not collect it. The date of return was 19-04-2024 and I have still not received a refund. I have spoken to Nadine numerous times but every time she lets me hold for not less than 10 minutes at a time after which I get cut off. It's now 04-06-2024 and I still can't manage to get my money back. I would not recommend Online Car Parts to anyone! The service received is terrible.