Customer Service Log in Customer Service/Mercell CTM Norwegian Customer Service Mercell CTM Norwegian Customer Service Welcome! Our opening hours are non-holiday weekdays between 08:00 and 17:00. Knowledge base in Norwegian ► Search in self help articles ► Problems with login or registering in EU-Supply ► Self help for suppliers ► Self help for buyers Phone support If you want to call us go to our contact page What can we help you with? Login Issue Supplier Support Support for suppliers Buyer Support Support for contracting authorities Book a call Select this option if you wish to be called within our opening hours. Please note that there may be a longer waiting time than if you choose to call us. Powered by Jira Service Management