By letter.
I can't remember what was it called and probably won't be able to find it now as it was 3 months ago or so.
Even if it was that notice but there was a payment plan in place and by now I paid 80% of the debt, does it count ?
Isn't there any expiry date?
And honestly I don't recall it being that.
i think it was just a letter saying what I owe and what for and to contact them to arrange payments.