Auto top-up

You do not want the widget to disappear at night because nobody topped up. Auto top-up charges the saved card when credit falls below a line you choose. Only an admin can turn it on, from Credit, then Payment, under Automatic top-up.

Why the three numbers

You are deciding when to pay, how much to add, and how much this may cost in a month.

• Below is the balance that triggers a charge. The form starts at 20 USD. Set it high enough that a busy hour does not hit zero before the charge clears.
• Top up is the amount added each time. The form starts at 100 USD. Too small and you get many charges. Too large and one dip adds more than you meant.
• Monthly cap is the limit on automatic charges for the calendar month. The form starts at 200 USD. This is the ceiling so a spike cannot keep charging the card.

The sentence under the switch repeats the rule in your numbers. Save it. The Credit overview then says auto top-up is on, and Left until auto-top-up cap is what this month can still add on its own. Those charges show as auto top-ups, separate from one you started by hand.

Turn the switch off to stop further automatic charges. Credit already on the balance stays.