Email: support@apiwears.com - orders, sizing, product questions. We reply within one working day, usually faster.
Trade & wholesale: use the trade account form and we come back within two working days with tier pricing.
Sizing help: send your height, chest measurement and how you like to wear the suit (close, standard, over layers) and we will tell you your size - or use the size finder on any product page.
We are a small team, so there is no phone line. Email gets you the person who can actually answer, and everything is in writing if you need to refer back to it.