Been having issue with Mileage plus since they converted to their new system. I am not getting credited for flights, then they took mileage away for some reason and the agent just wrote up a complaint when clearly its an error. I have submited numerious emails to their 1Kvoice customer support line without any reply. I have called and waited as much as 45 minutes only for the customer support person do nothing. I hope this will improved soon but I am not happy camper