Good thing you got it fixed on your own. Obviously the way you received it is blatantly wrong, and it's not even a detail. Doesn't matter if you are the only one or not 'complaining': if they did not showcased it like that on their website, it is an error.
Furthermore, assuming it's a distance-purchase B2C, and since it is within the EU, you have additional rights under the Directive on Consumer Rights (2011/83/EC). Since it's a good, you have the right to return it for your money within a period of 14 days counting from the day you physically received the item. This right does not require any reason whatsoever! So having a reason will extent that period much further (I believe half a year). EU law trascends any national law within the EU.
Don't let yourselves be bullied. You absolutely have rights. You fixed it yourself which undoubtly will give satisfaction, but I do recommend excercising 2011/83/EC next time.