You will have to use the RateLimit and check that you have enough rate to access the information.
Linvi
var followerRateLimits = RateLimit.GetCurrentCredentialsRateLimits().FollowersIdsLimit; if (followerRateLimits.Remaining > 0) { // Call method } else { // Wait for refreshed rate limit Thread.Sleep((int)followerRateLimits.ResetDateTimeInMilliseconds); }