Just an update, Samsung have agreed to replace the screen free of charge. You should all make a complaint and get it fixed. Hopefully they realise how ***** their phone is and refund them again.
I started by sending it in for a warranty repair which got declined, then did a department fair trading complaing that went no where.
I then used the "email the CEO" tool on the support page of Samsung's website. We had a number email exchanges and they kept declining. I then showed them a few of the messages from this thread and they agreed to fix it free as a "gesture of good will". I now need to book it in. Hopefully thats the last of the issues. Just be persistant.
I have note9 from 21.12 no even one scratch on my phone front or back.
I use spigen case from Amazon and on display just classic tpu protector 3pack from Ebay about 4£ all tpu is scratches already but screen is cover.