eh, if you still have the Netflix logged in on the UPB (i hope you didn't have the app removed or logged out yet).
Browse to "Notifications", you should see "Get Help" somewhere bottom right.
There is "Contact Us". There is a code number there. That number is unique for that point of time you are seeing that screen.
see image below.

I am hoping Netflix can help you reset password FIRST, so you can login to the account of that stupendous email. the ultimate goal is to replace that tttt...@gmail with something else you have control over.
(or why not you just attempt to really create tttttt...@gmail account and really have access to reset password etc of this netflix account)
Try call Netflix and see if they are able to help you gain access by password reset. You might need them to create a password on your behalf since if they send email link to reset password, you can't receive it anyway.
OR, get them to immediately change ttttt...@gmail to something else that you have access to (might need to create that email address before you call netflix).
--
impress Netflix on these points:
• Your UPB should be the only device ever logged in to the account
• ... ever since its creation
• ... somebody had created Netflix account without your permission
• ... on android tv device that is provided by and linked to your unifi subscription
• ... you have been charged by Unifi ever since
• ... that email address is stupendously stupid and definitely you will never have access to such email in the first place
• ... and you can prove you have immediate access to the device (by refreshing and reading them that dynamic number as many time they want)
--
longer term, after gaining access to this paid-by-unifi and if unifi keep refusing to remove itself as payment method;
• stop paying your pre-existing paid-by-something-else netflix account
• ... and switch that pre-existing to use another another another email
• ... swap the pre-existing email address to this paid-by-unifi netflix account
I haven't log out from UPB but I've managed to cancel the account through live chat but then again, after the cancellation, the account has been automatically log out from UPB. Based on the chat, I've already subscribe for the next cycle bill until 15 January 2024 but I no longer have access to it through UPB. CS on Live chat also cannot help me to reset the password to give me access to the account since I can't access that ttttt...@gmail.com.
It is a very costly lesson since that account has been subscribed for 3 months. RM55 x 3 month = RM165. After the account has been log out from UPB, I tried to open the netflix apps , and there it mentioned whether I want to register netflix through unifi with just a click. D*MN. TM has alter the app so that we can easily subscribe netflix with just a click on the remote control. I suspect either one of my kids tekan2 the remote and accidentally subscribe to it. What anger me is that there is no notification through email or sms that an activation through UPB has been made.
Warning to all of the user that have UPB. If you don't use netflix, just disable the apps in the UPB. make sure that the apps no longer appear in the menu/homepage.