Spilhaus dishonourable

I have just bought an expensive wedding gift from Spilhaus in Constantia Village, Cape Town for a wedding taking place mid Feb 2025. After I had paid for the goods the sales lady tells me they have a 6 day policy for any returns. The wedding is a calendar month away so how can I possibly honour that very limited returns policy? Plus it contravenes the South African Consumer Protection Act which stipulates - Unsuitable goods: Consumers can return goods within 10 business days of delivery if they are unsuitable for their intended purpose. How can this matter be rectified? They also have a NO REFUND policy clearly printed on the invoice - is that legal?