Debit Cards are more tricky, there are ways to get your money back, but it is not as simple as with a CC. I always recommend to use a CC for that extra protection.
If it were a proper fault, I assume that Samsung will have to admit it when the numbers of customers with the problem increases and begin to make a lot of noise. Of course, they might not, but angering a large number of customer who buy flagship products is not in any company's interest.
I have no experience with paypal. I did have an issue with a Sony TV and a Sony Centre that went down the drain. Sony never admitted that there was a problem, quite the contrary they went to great lengths to block me. They even stop the repair centre from giving me any documentation proving what they had found. Nevertheless, my CC refunded me all of my money and took the TV.
It was not pleasant, but I got my money.
Again, I do not think that there will be a need for all of that on this case. The screen was proven to be brighter than the previous one. The fact that there is no visible change between the two modes, makes a software issue the most likely cause. The settings are changed but not applied.
Technology enthusiast, but not related to any technological company.
