Hello, I’m sorry to hear about the issue you’re facing with the currency on your rich snippet. The currency displayed in the rich snippet is automatically fetched from your WooCommerce settings. To change this, please navigate to WooCommerce → Settings → General, scroll down and update the currency under Currency options as shown in the screenshot below:

After updating the currency, please check if the rich snippet reflects the correct currency. If you have any further questions or need assistance, please feel free to reach out to our support team here, and we’re always here to help.
Sources:
Service Schema Type » Rank Math
Why Are My Rich Snippets Not Showing Up in Google Search? » Rank Math
Google Search Console Missing Field Warning » Rank Math
How to Use Product Schema for WooCommerce Products » Rank Math
The rich snippet shows USD.
Hello,
Thank you for your patience.
We’ve checked the product using Google’s Rich Results test tool, and the currency is already set to USD.
Also, it is already showing the correct currency on the search results page. Please refer to the URL and screenshot in the sensitive data section.
If there are products that are still affected, you may submit them to your Google Search Console and click REQUEST INDEXING

Hope that helps.
Thanks for the reply, that didn’t work, and it never said COP as a currency only USD, not sure why it’s there on search results.
Hello,
We didn’t see “COP” on the search result when we tested this out.
Can you please share the keyword you are trying to use when searching for that specific page on Google?
Also, Goole may have just shown you an outdated snippet so you’ll have to wait for Google to recrawl that page and update the SERP.
Looking forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.