Can we set up some kind of automated purchase system to ensure we never run out of credits?
On a case-by-case basis, we can take credit card details along with a written authorisation to charge your credit card and top-up your balance when a pre-specified minimum is reached. If you would like to set this up, please contact us.
Alternatively, especially for other payment methods, the LowBal Notifier can alert you when a pre-specified low balance is reached, thereby providing you with ample time to top-up your balance before it runs out of credits.