You need to click on the link in the message, after which you will be directed to the order in progress, or you can press Profile -> Orders and after choosing the order in progress, you will see the goods not found at the top of the product list by clicking on the goods, a list of offered goods alternatives will open. You can choose the most suitable goods from this list. If the offered alternatives are not suitable, you can reject

the offer by pressing the confirmation button without the chosen number of alternative units.