A sponsor maybe non-repsonsive.It can happen in fact a reality.Do not worry.So be patient.But rather than focus on your sponsor remember that only you or maybe mostly you can make your future.I mean even if you get the best sponsor ever it is your effort and willingness that will make your success.A sponsor is great but he or she cannot really do all the tings for you.So take action even if you get a sponsor that is not so helpful.