Hi crafty woodworks3,
Anything posted or couriered to you from another country goes through customs to check it is not banned or restricted and you pay the right tax and ‘duty’ on it.
You will not have to pay anything to the delivery company to receive goods worth less than £135 unless they’re gifts over £39 or excise goods (for example, alcohol and tobacco).
Please see below link for more information.
Tax and customs for goods sent from abroad
Thank you.