By text – send the amount (£5-£50 in multiples of £5), the last 6 digits of your card and the last 3 digits of the security number (or 4 for American Express) on the back to 789 222 By phone – call 789 and have your card handy.
Either way, it’s free.
Checking your balance If you Pay As You Go, simply text ‘balance’ to 789 000.
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