If your Sponsor is non-responsive move on to your upline try your co Sponsor.
Do You really need to contact your Sponsor ?. You are in SFI to run your own business , your way, any information you need is freely available, sometimes an Affiliate will learn and know as much as their Sponsor in a very short time.
With lots of reading and learning by sometimes trial and error, you wont need to contact your Sponsor,......... Good Luck with your business........