Telemarketer calls that only use computer answering services.  Keeps calling then hanging up.  Made me return the call.  Said to press "1" to remain a member and get "great offers" and to press "2" to stop all calls from this number.  Tried to press "2" three separate times--the recording told me "cannot process that choice".  Obviously, threre is no way from the menu option to cancel unwanted calls from this number.