Customers can easily get in touch with Debenhams' customer service by calling their dedicated helpline, which is available from Monday to Friday, 8 am to 11 pm, and on weekends from 8 am to 8 pm. Alternatively, customers can reach out via email or live chat through the "Contact Us" section on the website. Debenhams' customer service team is committed to providing prompt assistance and resolving any queries or concerns.