Hi, I've been trying to do some research on this but have been getting different answers. I was planning on going to the tower on July 13th (Saturday), and to the shock of no one including me, the tickets online for the lift to the 2nd floor + lift to the summit are already sold out. However, "Lift entrance ticket with access to the 2nd floor" are still available for that date.
So my question is, can I prepurchase this ticket online, and then on July 13th when I am at the tower and I reach the second floor via lift, can I buy separate tickets/upgrade my current ticket to be able to go to the Summit?
I was reading on this page on the official Eiffel Tower site, https://www.toureiffel.paris/en/faq/my-ticket/i-bought-ticket-2nd-floor-and-now-i-want-go-top-possible, and it says "The choice of destination is made when purchasing the ticket. If you have opted to visit the 2nd floor you will not be given the possibility of buying an additional ticket for the top.", so that makes me think that if I prepurchase a ticket for just the 2nd floor then I won't be allowed to buy a new ticket on the day of to go to the Summit.
Also, would buying the lift to the 2nd floor ticket in advance provide me with any advantages? If I won't be able to skip the lines then what is the point of buying the ticket in advance? And if this were possible, would having to buy the Summit lift tickets separately be more costly, or is it the same price as the online ticket for the lift to the 2nd floor + lift to the Summit?
Thank you!