Hi on Jan 18th I have mistakenly checked in Amersfoort(I forgot that I checked out at that station)

I travel from Bussum Zuid → Amersfoort Central, Amersfoort Central → Barneveld Noord

On that day morning I checked in Bussum ZUID, checked out AC but then mistakenly again checking in AC(This is incorrect) - it was corrected by NS to Bussum Zuid(5.3Euros) but this is not the correct one.

Expecting refund for the same.