Owner's reply: We have re-checked all our support requests regarding this extension and we were unable to find this customer, or any other issue with the extension that we hadn't helped to solve. We can ensure the calculator works properly, and we state clearly at the product description that exchange rates are recovered daily from European Central Bank, this is the full description at our product page:

Updates data directly from European Central Bank. The reference rates are usually updated by 3 p.m. C.E.T. They are based on a regular daily concertation procedure between central banks across Europe and worldwide, which normally takes place at 2.15 p.m. CET.

We don't understand the comment about 'you must have a subscription to have some help'. Yes, this is a commercial extension, the subscription+support comes with each purchase, so we're not sure where did this customer got the extension without support. If it was downloaded from another site 'for free', we don't find strange it doesn't work properly, and we suggest to uninstall just in case you may have a hidden 'present' inside the code :)

Having said this, if you are a real customer and you have any issue pending that we haven't noticed for any reason, please contact us even if your subscription period has ended and we'd be glad to help.