Different products have different tax refund methods. I forgot the details. This is my tax refund form at Heathrow Airport for your reference.

When the tax refund was made, I didn't say I wanted to return cash, but I wanted to return my credit card.

In my impression, electronic products can only be refunded by credit card and debit card, and cash is not refundable anyway. The refund of electronic products is after the security check, and everyone should check them one by one to make sure whether you really take the products out of the country. Therefore, you cannot inspect these products. If you check them, you can't get a tax refund. You will generally be asked to leave your bank card number, and then the tax refund will be credited to your account. I left TSB's debit card, and I left it with my friends who are still in England. I heard that I received the tax refund about 1 month. In addition, it seems that more expensive jewelry and watches operate in the same way as electronic products.

Baggage, clothing and other products can be refunded directly. This is at the entrance of the airport terminal. There is a direct tax refund. Fill in a form, too, and prepare the shopping receipt and the tax refund form issued by the store. At this time, there will be a queue of 1~2 hours, and there are many people. When they arrive, they will give all the completed bills and receipts to the staff, and then they can choose whether they want cash or return the card. I chose cash at that time, and then he calculated and gave me cash directly. He asked me where my things were and I said they were all in the box. Then he took a look and didn't open the inspection, so the overall inspection was not very strict.

Different airports may have different requirements, but electronic products, watches and jewelry should all be the same, so you can only choose to return the card.

As for returning the credit card, there should be no such requirement. Anyway, my electronic products were returned by debit card, and they were returned successfully. If you really don't feel at ease, you can ask the travel agency in Britain, or ask Manchester City Airport directly, because different airport regulations may be biased.