https://help.ukpostbox.com/article/2103-letter-and-parcel-sizeweights

Druhy zásilek

Large Letter Size Items received | £1.00 Pick/Process | £0.75 Small Parcel Size Items received | £2.50 Pick/Process | £1.50 Medium Parcel Size Items received | £2.50 Pick/Process | £2.50

Large Parcel Size Items received | £2.50 Pick/Process | £3.50