GOLDWAGEN REFUND TAKE LONG

I have returned a vacuumpump to Strand Goldwagen because it was the wrong one they gave me. I was refunded on my bank card from their ABSA card machine. This was on Friday morning 2023-07-07. But till today 2023-07-14 the amount don't show in my bank. The amount is R7185.00. I did contact Strand Goldwagen and they informed me that the amount is out of their ABSA account and that i must contact my Bank Nedbank. Nedbank told me that the amount don't show on my account. I have contacted Goldwagen Strand again and they don't have an answer on the problem. It is the responsibility of Goldwagen to log a fault at their bank ABSA. I have contacted Goldwagen headoffice but they did not come back to me with an answer. I have the refund slip and the machine slip for refunding into my account with my bank card. I heard there is more people that has this problem.