Why can’t I register? June 01, 2020 17:47 Updated If you are having a problem registering on coa-retailers.com, please contact our Customer Care Team at email@example.com and be sure to reference B2B in the subject line. Related articles How do I register? Can I make a change to the shipping address? Can I pay my invoices on-line? Can I order parts on-line? How do I place an order?