I really need to change home currency!

I really need to change home currency!

I need to change the home currency for my organization, but it seems system don't allow this. Can I contact someone in your team to do it? They setup the home currency by mistake as ARS and we need it to be USD as soon as possible. Our CRM is already being used a lot, and can't afford the loss of configurating a new account just to do a simple change.

I would appreciate your help as soon as possible.

Regards,