Elias here with Shopify Support. Thank you for reaching out to Shopify!
Thank you for the follow-up and my apologies for the late response. If you haven't contacted Shopify Support and have your currency changed yet, I'd be happy to further assist you. I've located your store and I've sent an authentication email to the the registered email we have on file. Please check your inbox/spam/junk folder in the email and reply to it. Once I've authenticated your account, I'll be able to enable the change of currency for your store. Thanks!