Payments not being done

[SGudbrandsson]

I have this plugin on a client site, everything works great except payments don't go through.
The payer doesn't get an error (he/she thinks everything went great)
My client doesn't get an error
But no transactions are done on BrainTree.
There are no customers created in BrainTree.

The API keys and configuration settings are all correct - production environment and everything.

I don't know what's missing since this plugin doesn't give any debug information.