Customer Account
Orders placed from a guest account will not be visible if the customer account was created afterwards. This is why we recommend creating a customer account before placing an order. In any case, a confirmation email containing the details and associated invoice is systematically sent, whether you have placed an order from a guest account or a customer account.
Check your spam folder if you cannot find them in your inbox.
Your invoice is attached to the confirmation email received after placing your order. It is also available in your customer account -> Order history -> Invoice
The instructions are available for direct download from the product page of the relevant product. If this is not the case, you can find them in your customer account after placing your order, in the Technical Data Sheets category.