The store currency is set using the visitorās browser/language locale, so if set to US English it would show USD, British English would show GBP, and any European language (from an EU country) would show EUR.
All other locales show the storeās default currency which is GBP.
As @dan mentioned, you can switch the currency in the shopping cart to the one you prefer to pay with.
Sorry to hear you are having troubles. Iām using DuckDuckGo as my search engine and the links work fine, but Iām not using their actual browser, so perhaps thereās something blocking the links in your DuckDuckGo browser?
Can you try a different browser to confirm, like Safari or something else?
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I can highly recommend Elements Hosting, long live El!