You’ve come onto a thread where someone is asking for advice and you give an absolute nonsense reply that it is not legal to give a credit note, and you’ve argued with everyone telling you that you are wrong.
Consumer law is very clear and very simple.
If you order online, you can return the order for any reason at all if you notify them within 14 days and then return it within a further 14 days. Do this and you get a full refund. If you miss this time frame, then you can ask the company for a refund but they can refuse. They may choose to offer a credit note, which you can refuse to accept and just keep the order or you can accept the credit note and return the order, but you are not entitled to refuse the credit note and demand a cash refund after you missed the legal timeframe.
You can also return things which are faulty, and for this, there is no real time frame. If you buy a toaster and it breaks after a few months, you should get a repair or replacement or a refund. The 14 day time limit doesn’t apply. It you have a faulty item and they offer you a credit note, you can refuse and insist on a full refund.
I really don’t understand why you think you are correct and that the OP is entitled to her money back. It must come down to reading comprehension and sadly, you just don’t understand what has been written. When you don’t understand things, and you’ve been told that you’re wrong, stop trying to give advice. You’re not helping anyone.