Never try calling their customer… Never try calling their customer service, they sound like robots they don't try to help you with the situation at all. They just repeat the same thing over and over again until your realize that they are completely useless. Horrible experience, will never use united again.

Terrible service for premium Polaris… Terrible service for premium Polaris price. ORD to LHR for over $6000. Seat changed twice due to aircraft changes, they claim. Seems to me it’s not rocket science to have an algorithm that maintains seating choices and preferences when aircrafts change? Bag drop off also a pain. Then to the Polaris longe seated lunch? No spaces available, sorry. Terrible all around. Waste of money. Premium price for ordinary service or even poorer.

Baggage was delayed and they closed my… Baggage was delayed and they closed my case after I got the baggage. They dont answer because of interim expensives. Really bad airline. Dont book.

Stranded in Chicago and had to get a rental car, United never took responsibility United said I would be stranded in Chicago for 2 days, no hotel accommodations, sleep and hang out in the airport for 2 days. I had to be in KC for work, so I got a rental car and drove myself to KC. United declined to cover the rental car, and the whole experience was a disaster of customer service. Fly any other airline.

Fraud of Refund Voucher Around 6 months ago, I was forced to cancel a family flight and received a voucher number to get a discount to book a new flight. The new flight booking is not accepting the voucher code. The costumer support made the booking manually and received the same error and requested to change the voucher into a discount code. The answer from the CS team is that a refund is impossible. I corrected them saying the other CS requested a discount code, not a refund. The Email bounces back. No answer given. I was in 49 countries in around 200 flights globally with endless of flying companies. But united was one out of two (Turcish Airlines second) which is involved in unfunctional service that causes fraud.