@Justinf Are you moving your number to the other network? If you are you just need to text PAC to 65075. You then have 30 days to give this code to the other network. If you don’t want to move your number just text STAC to 75075 you then give this code to the other network. That’s it you don’t have to do anything else You could leave tomorrow as your out of contract.
Just by means of advice on terminology, it's incorrect to say your contract ended months ago.
Your minimum term ended whenever it did, and you were free to given 30days notice anytime. You still had a contract with EE and still do, until such time as you either give disconnection notice or use a PAC/STAC.
I'd recommend reading this EE help page which provides further guidance on leaving EE.
