Refund not paid

Rented a car on the 6th of September 2024 and returned it on the 08th of September 2024 and the invoice was only processed on the 11th of September 2024 and I was told I would receive my refund within 14 working days it’s been three weeks now and I still haven’t received my refund only when I called them today they told me they had a new system and only processed my refund today , had I not called them I would still be waiting for my refund this is so ridiculous cause when you render their services they require their money immediately but when it’s time to return it there is always excuses as if you don’t need that money so unprofessional.