Find Bespoke IP Change
In the EDBB Control Panel, choose Services → Order New Services → Product Addons, or open Product Addons directly.
Choose Bespoke IP Change on the left to select your replacement yourself. Service addresses are examples.
Choose the old and new IP
Choose your VPS
Select Old IP
Select New IP
Review the order

Select Old IP identifies what you replace; Select New IP is your chosen replacement. Addresses are fictional; the example total includes 21% VAT.

Illustrated closeup: choose an address from the dropdown; use the small circular-arrow button below it to refresh when refreshes remain. Example addresses, not live inventory.