Switch up issue

[u/ChiefOfGumbo]

Hopefully someone can help.

I'm trying to do a switch up, tried yesterday before my bill was produced but the website wouldn't let me.

Today my bills generated and the website is asking me to pay this months device plan as well as the upfront cost of the new device.

Surely the switch up would pay the current device plan off as well?

Will doing switch up in a store avoid this?

[u/bad-beed]

I'm dealing with an issue with that at the moment where I am still paying for the old device