How do i contact lewis group customer service? Please call us on our customer service toll free number: 0800 228 444. Or email us at [email protected]. How do i contact john lewis financial services? Call Customer Service: 0345 266 1390. Textphone: 0121 265 3051. Lines are open 7am-11pm. Calls may be monitored and/or recorded for security and service improvement purposes. Write to us at: John Lewis Financial Services.How do i get in touch with john lewis? John Lewis Customer Helpline. Contact John Lewis Customer Services using the call connection number below or visit John Lewis for information at no or lower cost. You can contact John Lewis Mon-Sun 8am-9pm. 0901 545 5327. Customer Calls call connection and sms message information service costs £6 plus phone company'sWhat are the opening hours for john lewis phone numbers? Please review the company opening hours provided for John Lewis prior to using our connection number. Calls made to our call connection service outside the hours of 8am to 8pm Monday to Friday and 8am to 6pm on Saturdays will still be charged on the phone payers bill.