Yes, KLM offers customer support via WhatsApp at +1 (888) 554-0075 (US) // +44 (20) 39003990 (UK) where you can chat with their service agents 24/7. KLM now offers free inflight messaging through Facebook Messenger, iMessage, and WhatsApp at +1-(888) 307-0060 (US) or +44 (20) 39972666 (UK).