It's very very hard to find this key right now friend.
I'm looking to buy Microsoft 365 E3 or E5 keys in bulk. I need 500 keys as a start. I can pay via paypal. These keys are different from office 365 E3 Admin keys that activate office 365 pro plus on 25 devices. Check the url below for more details regarding the keys
https://www.microsof*****m/en-us/micr...soft-365-plans
You can contact me via PM. And don't forget to send your email address