No you don't get charged for using 'Live Chat'.
Those particular charges relate to the NOW TV billing system checking the validity of your card and your account. All of which will be refunded 😉
By any chance did you take out the £1 entertainment and cinema trial Promotional Offers for new nowtv customer back on the 31/5/17 ?
When you go to My Accounts > View My Bills it should say what the £1 each charge are for.
Have you received your latest credit card statement for end of June ?
If so, have these two £1 charges been credited back onto your card ?
It's been a while since i have been pro activate on the forums, but i thought the Authentication charge was 10p which would be automatically re credited back onto your bank card (unless NowTV have changed the charge from 10p to £1).
Perhaps if the 2 number £1 charges don't show up on your next credit card statement has a refund then maybe drop nowtv an email on the link page below.
Did you check the pass duration on the box or App on your phone ?
If so they don't have the ability to look more than one month in advance
The best way to check the full duration of your passes or vouchers is to go to the NowTV website with your internet browser and click on My Account > My Passes.
Whilst checking My Passes make sure the voucher code was successfully added to your account.