Unpaid Invoice is incorrect (Inv number IN-11738505). While trying to upgrade, getting this error “Refer to https://cfl.re/3VUQyyL for assistance. The zone cannot be upgraded at this time.”
You’ll need to follow these directions here, Billing, Plans & Subscription Questions. The Community cannot assist with Billing, Account nor Registrar issues, you need a ticket with Support.
If you already have a ticket, Support will respond to you on that ticket. Questions about billing will need to be resolved by the Customer Support team and cannot be resolved on the Community.