The solution is quite simple... Order in time! We ship on Mondays until Thursdays and in summer according to our summer schedule. Remember that we do not ship on National Dutch holidays either. Sometimes when packages don't arrive in time, it could be a human error, but most of the time this is a mistake in at the courier. We cannot fix this problem, since we are not the shipping company. Unfortunately, it happens a bit too often that customers get angry with us, while we have shipped in time, that is why we spill it right here. So you can understand how the process goes. You need to understand that we cannot be held responsible for your package to arrive late. It seems unnecessary to say, but our advice is simple; Just order in time and be safe for your next appointment. Is your package late? Please be kind and understanding. ♥