When I try to listen I hear a "this station is full" audio message?
If you receive a "station is full" audio message, that typically means that a station has reached its limit of Simultaneous Listeners (SLs) that can tune into their station at one time. Each station is allotted a maximum amount of free listeners that can access their station. Once this limit is met, no other free listeners will be able to access this station until the SLs falls below the maximum amount of listeners.
With a VIP Membership, one of the main benefits is VIP listeners do not count against the SL count for each station. As a result, VIP listeners can access any station at any time.