Sorry to say but I don't think Mophie is available through wholesale much less through dropshipping.
It does say on their site that you can contact them (which you have but was denied for the moment) for reseller accounts. It seems your choice would be to contact one of their authorized distributors or get t he m to approve your reseller account.
Please be careful of the many sites claiming to sell authentic Mophie products, I saw them and most of them are Chinese sites or based in China.
All the best!