Hi @Karol Wilk 

Normally the KPN invoice is paid via “direct debit”.
It’s automatically debited from your bank account, a few days after the invoice date.

If there’s no direct debit agreed, you’ll find the last date of payment on the invoice.

Normally it should be paid automatically by the automatic collection agreement.
The date when it is collected should be showed just in top of the invoice.

In case there is no automatic collection agreement.
The date of payment to be expected to pay by yourself also should be showed on the invoice itself.

Hi @Karol Wilk, welcome to our forum!
I hope this has answered your question!
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