UK Visa application rejected, not sure where to proceed

For some background, I’m from South America, studying my Masters in the Netherlands. I just got my passport back along with the rejection letter.

I wanted the visa in order to visit my brother for Christmas, from the 23 of December until the 6th of January (15 days). I’m Ecuadorian applying from NL.

In the rejection letter, the reasons given are:

- They’re taking into account my personal circumstances in “Ghana” as a refusal point

-They say my income doesn’t match my statements (the income they show is not the one I specified I had)

- They say they can’t justify my income when looking at my bank statement even tho I added the scholarship letter where it’s justified who and why they are giving me the money.

-They also have different dates than those specified on my ticket/application.

At the end of the letter it’s stated that I cannot appeal. However the data seems to be incorrect from their side so it doesn’t seem fair to be rejected because of their own fuckup.

I tried looking for a way to contact them but no dice. Anyone have any advice in this situation? Thank you