There are just two options for customers who need to contact the Lindt customer service team. Fill out an email contact form on the company website or contact by phone. You can visit the contact page to reach a representative and expect a reply within two business days. You can call 1-877-695-4638 for questions and issues. Though no hours of operation are listed online, the company’s U.S. headquarters are based in New Hampshire. It’s best to assume that the customer service line operates during Eastern time zone business hours.