2 products ordered on July 29 with a delivery time...

2 products ordered on July 29 with a delivery time of 1-2 business days. Pick up at the store (Zaandam). Now I received an e-mail on day 3: "This way I want to inform you that there is 1 order from you ready in the store. It concerns the item XXX. We have seen that you have ordered the same two items but unfortunately we have but received one instead of two. Due to a malfunction in our system, you will not receive any automatic mail. " And soon after that an e-mail that they think it is a pity that I want to cancel part of my order. Yes, I also think it is very unfortunate that you only supply 1 item and therefore cancel my other item yourself. But okay, 1 item is better than none. So I went to the store on day 3 at 8:30 PM. It was already a bit of a chaos with each other at the service counter. Guys who had no idea what they are doing. It was finally my turn and of course ... they couldn't find my order anywhere. A boy looked at me in the warehouse and 'downstairs'. But unfortunately there was nothing there either. Eventually they had asked Engel but he only came to say bluntly to the boys I stood with: "Yes we don't have it. The stock is -2." Not really service to me. It was therefore around 9 p.m. and of course she wanted me to get away and go home (I also wanted to go home after a long day, but with my article (s)). That boy neatly asked for my details and said that they would call tomorrow (so today) as soon as they know more. My data is on a post-it and since they can still lose a large article, I think this post-it will disappear quickly. In short, no solution came up or mentioned and therefore not really customer service. I didn't feel like they were really going to do anything with it. I would like to hear a solid solution and my 2 products. Since it is still 'in stock' online to date.