Bought a KLM ticket 2 days ago and it was confirmed and paid, they charged me a “price update” amount this morning.

Hello.

KLM after 2 days of purchasing my ticket decided to charge me again on the same card but like 10% more on the initial agreed upon and paid price.

I booked through their website and my ticket was confirmed and everything.

Why did I get this unauthorized “extra charge”? I didn’t touch anything in these 2 days or add anything. It says the ticket price increased that’s why they did that.. but is this going to happen after a few days again?

I’m actually so confused because I’ve never had this happen to me before with any airline and it feels crazy they can keep charging me like this? Does anyone know what exactly is this?