not-for-mail@ahjg.co.uk declared for all the world to hear...
> The Orange online service to monitor balances and make top-ups with a
> registered credit card appears to have gone tits-up. Can anyone confirm
> that this is a general problem and not just one with my account?
>
> What useful alternatives exist - does Orange offer an auto-topup system to
> charge a card when the phone's prepaid balance falls below a set value?
No.
> I'm intent on preventing a child's phone from becoming starved of funds
> but I do not want to put that phone's service onto a monthly contract.
You can set up a direct debit - the minimum top up is £10 per month, and
you get 10% bonus credit for topping up this way.
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Regards
Jon