I just checked in case my batteries had come via a courier or different postal service, but no. Here's an email I got when I last ordered pump supplies:
"Dear XXX
Thank you for your order – delivery has been requested for tomorrow for you.
The batteries will arrive separately via Royal Mail and should reach you by the end of this week.
Kind regards
XXX"
So definitely Royal Mail
"Dear XXX
Thank you for your order – delivery has been requested for tomorrow for you.
The batteries will arrive separately via Royal Mail and should reach you by the end of this week.
Kind regards
XXX"
So definitely Royal Mail
