Change basic settings.
We head to the Settings Menu >> Settings and from here we will select the currency that we will use in MBilling (symbol, $, U, R, €, ¥, etc.). Then we will select the language to be used en for English, es for Spanish and pt_BR for Portuguese.
We will also select the country BRL Brazil, ARG for Argentina, NLD to Holland, ESP for Spain and USA for the United States and rest of the world.
And finally Admin email, we will enter the mail in which we will receive notifications. The remaining parameters will default leave. We will explain later on how to modify it.