You upload funds into your NachoNacho Balance using your Payment Source. This Balance is then used to pay for your purchases.
You can enable ‘Auto-Topup’ to make sure there is always enough Balance to cover your purchases or just ‘Topup’ when necessary. It is recommended that the Minimum Balance is at least as large as the largest single payment you expect to make.
If you are paying with a Bank Account, note that there can be up to a 1-week delay before your funds arrive in your Balance and become usable.
You can learn how to update your balance here.