private IList <ITweet> PullMentionTimeLineTweets(SocialAccount account, int maxNumberOfTweetsRetrieve, DateTime since) { var mentions = new List <ITweet>(); var tweets = _twitterClient.GetMentionsTimeline(maxNumberOfTweetsRetrieve); while (tweets != null && tweets.Any()) { if (tweets.First().CreatedAt.ToUniversalTime() <= since) { break; } foreach (var tweet in tweets) { if (tweet.CreatedAt.ToUniversalTime() <= since) { break; } mentions.Add(tweet); } ; if (tweets.Any(t => t.CreatedAt.ToUniversalTime() <= since)) { break; } var maxId = tweets.Last().Id; tweets = _twitterClient.GetMentionsTimeline(maxNumberOfTweetsRetrieve, maxId); if (tweets.Count() == 1 && tweets.First().Id == maxId) { break; } } return(mentions); }