How can I change the default currency to 'PKT' after a test sale?

On the Shopify platform, we run a loyalty program (www.20latnatura.pl) in which we redeem rewards for points that customers collect in different ways in brick and mortar stores and a separate online store.
When we created the store we put the default currency in zł (which is polish currency) not realizing it will stick for good. Now we would like to change it to something similar to the abbreviation of “points” in polish which is “PKT”. Since we made our first test sale the system does not allow us to change it again. I wanted to know how I can do this, please.

Hello, @Slawek .

Changing your store’s currency after a sale has been made can be done by reaching out to our live support team. The support advisor you connect with can allow you access to this menu once again, and you can choose whichever currency works best for you from there.

Our live support via phone, chat or email can be reached via our support portal here. Simply type your query into the “ask about a topic” bar, then hit continue to support to access. Here’s a video showing the steps in action.

I’d love to help you out with some business growth ideas - how do you feel things are going at the minute? Is there anything you’d like to improve or change?