Hub 5 to 5x - Fibre Up

Hi, I've just had my Fibre Up upgrade but my existing WiFi Pod (black - WiFi 6) is not connecting to the new router. I did speak to customer support but they've chosen to ship a new pod. Please can someone check if the existing pod can be re-assigned to the new hub, as otherwise it's e-waste even though it seems like it should be functional (lights all cycle, was working right up to the router change). I've been told it can't be replaced until there are 3 pods on the account already, but I'm not going to hold onto it for future replacement if it doesn't work now.