Joe Walters

Hi,
I had a question about the tax due on my calculation.
It's under £3k, I submitted my online form in October and I was expecting it to be taken out of next year's tax code but I am receiving messages to pay before the 31st of January.
I was under the impression it would automatically default to the tax code to claim the money back if I fell into those conditions.
Is that not the case?
Joe