Problem with “?wmc-currency={currency}” after link.

Hello, I am contacting you because despite my modifications, I cannot delete “?wmc-currency={currency}” after link. I think I’m doing the steps correctly but I prefer to ask for help. THANKS
When I change currency, “?wmc-currency={currency}” after link. appears at the end of the link.
How can I give you my secure information?
Yhank you