Nitro Credit Options

Can we have the option to add Nitro Credit to ourselves?

Currently, if you want Nitro Credit, you have to purchase Nitro as a gift.. And then send it, and then accept the gift from yourself. Which is inconvenient and very annoying for those who don't like recurring billing.

It is nice to add the credit when I want to add it, rather than on the payment day the Nitro falls on.