Hi Dalana and welcoem to the forum,
There could be multiple factors as to why sales are so slow on Bonanza, but the most obvious one when comparing directly to eBay's platform is traffic. You have far more traffic on eBay than on Bonanza, which equales more opportunities for buyers to see your products. So if you find that you are getting sales on eBay, but not on Bonanza and you are selling the exact same thing, same price, same everything, then you can relate that directly to traffic flow.
I think it's always a good idea to have a large footprint in the market, but not all platforms are going to deliver you the same results as each other. In regards to your eBay limits, that is just because you have a new account and those limitations will be lifted soon.