Buggy app since latest update. My biggest complaint besides the sudden appearance of lag when just using the app in general, is the hard time I have to locate CONTACT SELLER. I can never understand why this feature is hidden and one has to scroll down all the way to almost to the bottom of the page. It would be good to have it next to the seller's name so if a buyer has to communicate with the seller about anything, one can quickly do so without having to pass over a lot of unecessary info.