Buyer asking for replacement over minor flaws in discounted Pokémon bundle — fair or not?

Hi, I sold a Pokémon card bundle at around half of market price.
Some cards have very minor imperfections like tiny black dots or slight edge whitening.
No creases, bends, or major damage on any card.

The buyer is now asking for replacements because of these small issues.

In your opinion:
1. Would these still be considered Near Mint or more like Lightly Played?
2. Is it reasonable for a buyer to request replacements for minor flaws in a discounted bundle?

Thanks.