I bought a Samsung S23 ultra in the black Friday sale from the Samsung online store. It had £250 off the regular price. It was due to arrive 2 weeks later but the day before it was due, I had an email confirming my cancellation and refund. When I contacted them, the said that they had cancelled the order due to a system error and I would need to reorder however, they wouldn't be able to give me the black Friday discount as It was no longer black Friday. I have contacted them about this serveral times but they will not change their mind. Absolutely revolting behaviour. I will never buy another Samsung product