If you use all of your plan’s inclusive MACs, you will be charged an overage rate for each additional MAC that you message. The way that MessageBird charges you for these additional MACs depends on the type of Inbox plan that you have.

Prepaid Inbox customers

If you are a prepaid Inbox customer, you will have a prepaid balance. If you use all of your inclusive MACs before the end of the calendar month, and you have balance remaining, the overage rate will be deducted from that balance. 

If you have insufficient balance, you won’t be able to send outbound messages to new MACs until you top up your balance, or until your plan refreshes at the end of the month. 

Postpaid Inbox customers

If you are a postpaid Inbox customer, MessageBird calculates your bill at the end of each calendar month. Once we’ve calculated your bill, we’ll send you an invoice. You will receive this invoice at the start of the next month. 

If you use all of your inclusive MACs before the end of the calendar month, you will still be able to send outbound messages to new MACs. The overage charges for these additional MACs will be added to your invoice.