How are paid invoices marked in MijnKPN?

This morning I was notified by my bank that they blocked payment for my KPN data subscription I logged into my bank app created that same payment only thing I had to fill in manually was beneficiary s name which I filled with 'KPN' on your site it is said that I can check which invoices are already paid via mijnKPN app my question is how exactly are paid subscriptions marked? Or how else can I confirm my payment went thru and my subscription is paid?

Thank you for answer in advance