Best answer by Mohammed
If you've already got a phone contract with us that's ended, you can simply upgrade to a SIM-only plan if you didn't want a new phone contract.
From what you've advised, you've instead taken out a new SIM-only plan.
It's not possible to port from an existing iD plan to new iD plan as this causes the number to be lost.
If you're happy to lose your number, then you can request a 30-day disconnection for your phone contract and leave the SIM-only plan active. You can then register a new iD account on our website.
If you did want to keep your phone number, the best resolution would be to return the SIM-only plan and process an upgrade to a SIM-only on your phone contract. In this scenario, you would keep your old iD Account.
Hope this clarifies.