Not getting bill notification emails for Apple email

[Add_14101]

Hi, just realised I stopped getting bill or account related emails to my Apple @iCloud.com or @Me.com addresses from February 2022.
Marketing emails from Three get through but not anything related to the account (the emails from Three do not go into spam/junk).
Most recently, the sim I ordered wasn't delivered and I had to physically go into a shop to get the eSim.
Help needed to resolve once and for all please.
Thank you.

[Three_Stacey]

Hi @Add_14101 👋 I'd love to help you with this one.

To kick off an investigation I'll need you to PM me with your name, number, full address and date of birth, I'll also need you to please confirm your email address. Please let me know both the iCloud and the Me address.

[Add_14101]

Hi, @Three_Stacey silly question but how do I pm you? If I click on the link ‘send me a pm” At the end of the reply it tells me I don’t have sufficient privileges. 
thank you. 

[Add_14101]

Worked after sending the reply. Weird