I'm really sorry to hear you are having to re-register your devices after upgrading your OS. This is something that needs to be done as for some reason the new OS makes it look like you are using a new device.
Checking things at this end, I can see there is 1 change left to use before your device changes reset on the 1st October. Use this to register the 2nd device
Let me know how it goes.
Kath_F Forum Team
Tech fan? Have you read our Digital life blog yet? Check it out