I always get great service from Planet X . My latest order was 2 Carnac short sleeved base layers which are keeping me snug and warm this winter . The fit is superb and the quality is great for the price. You always get good communications from them with tracking information.
As for their returns policy , i wouldn't know , as i've never been unhappy with anything from them . I've had bike parts , tools and clothing from them over the years and ALL of it is still going strong ! KEEP IT UP !