Please, I purchase your membership just because of this

Please,

I purchase your membership just because of this plugin. Now I found out that it does not allow BRL (brasil) payment instead USD(dollar).

Please, what should I do to sell in BRL instead USD?

Another thing, how can I add a different gateway? Like infusionsoft...

1) How can I add BRL instead USD
2) How can I add payment gateways like infusionsoft??

Please, I really need it. Thank you!