Probably spam or phishing. Is it from …...@kpn.com ?

It's from KPN. 

Are you sure?

What is the exact address of the sender and was it sent to your @home.nl address?

The address is noreply@kpn.com

I can forward the message to you if you wish.

davehorne at home dot nl  Contact me.

I am not an employee of KPN so I am not going to ask you to forward that message.

What you could do is make a screenshot of the message and post that here. Please make sure you mask all personal information including your e-mail address as this is a public forum.

Have you ever had a subscription at KPN?

Long before I ever bought a smart phone I bought a phone through Kruidvat or Hema with a KPN pay as you subscription. This was probably more than 15 years ago.

For the past six or seven years my various smart phones have had yearly subscriptions with Vodafone.

I'm fairly certain the emails from KPN are legitimate.  

I'm fairly certain the emails from KPN are legitimate.

The e-mail adres noreply@kpn.com is a legitimate adres.

It’s a strange thing.

@home is now part of Ziggo. So you don’t have to be worried that that adress will be stopped.

I found one of the emails that had been deleted.  It has to do with a KPN ID. 

It’s not my email address per se that will be deleted, it’s my KPN ID.

Sorry to have taken up your time. 

Hay @DaveHorne, thank you for contacting us. It seems that the mystery has already been solved ;) That is great. Thank you for letting us know!