Receiving calls from the UK whilst in Hong Kong

[Myinty]

Hello,
I am a pay monthly customer. Currently in Hong Kong and have received a call from the UK which lasted just under 10 minutes.
I subsequently realised that this will now cost me 2.52/minute!
Can I retrospectively add the "30 minutes from anywhere" Add-on to cover this?
Thanks

[Chris_B]

@Myinty   No you can not add it to cover costs after the fact.  The charge is already there. 

[bristolian]

There's a bit of a calculated gamble in covering eventualities here - the 60minute call bundle is £14.05 which you'll break even with after 7 minutes of calls, leaving the balance as (effectively) a freebie.

It's always worth doing these calculations before travelling long-haul especially. After how "little" usage will you kick yourself for not adding a bundle, versus having "plenty of allowance" in-hand