FAQ & support We’re here for you Phone +358 45 7734 5077 Email arto.kettunen@tesconsulting.fi Find the answers to your questions Here we have collected common questions and answers. Can’t find the answer to your question? Contact us, we are happy to help! Questions about delivery Here you can find the answers to frequently asked questions about delivery. Questions about delivery Calculation questions Here you can find answers to questions about basic functions in our calculation program AC MasterSelection. Calculation questions Technical questions Here you can find the answers to frequently asked questions related to our products. Technical questions