Such good advice here. Let it go! You weren’t cheated, you were charged a different price than what native Spanish speaking people or locals pay. It happens everywhere. You undoubtedly get certain benefits in your own local pubs and restaurants...
I noticed in the first post that it is not clear whether the other customer was a "Spanish pilgrim" or a "local".
And in order to know whether it was "cheating" or "a discount" it would be useful to know what the official price for the purchased...
There seems to be broad agreement on that.
The issue is that in some bars, the person serving may just pluck a figure from this air to charge you, when there is in actually a price list that should be displayed by law, and you should not be...
Having lived in tourist areas as a local in Ireland I will get charged the same price but might get a free tea or coffee on the house, maybe even the odd bun or cake, or a free side of chips with a sandwich. Because the owners and staff know you...
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