ご利用いただく (keigo: have you use)

A keigo construction: the honorific prefix ご + 利用 (use) + いただく (humble 'receive'), meaning 'we humbly receive your use of X' → 'you kindly use X.' Its negative potential ご利用いただけません is a standard polite way to say 'cannot be used,' common in announcements and error messages.