Worldwide shipping with International Airmail is £2.50 at buyers risk
New Zealand shipping with NZ Post £0.75 at buyers risk.
I list my stamps at 30% of Catalogue with a minimum of £0.15 buy £5 and over for free domestic shipping or £10 and over for free international airmail
International Registered Airmail is £8.50 buy £40 for Free shipping
Due to covid 19 expect DELAYS as air traffic is very hit and miss.