Limit amount of products with coupon

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-- PHP version -- : 7.4

Hi
I hope I can explain what I would like to archive

I'm going to email some of my customers that they can purchase some tickets before normal sale begins.
In the email I will tell them, that they can only purchase 2 tickets in all (I have 2 types of tickets).

But do you have any ideas on how to get this working, so a customer isn't buying more than 2 tickets?
I know I can limit the amount per. checkout on the item, but the customer still is able to buy 2 x ticket 1 and 2 x ticket 2 this way - AND just go back after this purchase and do another one - makes sense?

I was thinking of a coupon that could be used only once and would give access to 2 x ticket (either 2 x ticket 1, 2 x ticket 2 or 1 x ticket 1 + 1 x ticket 2).
But is this possible? Or do you have another great idea how to solve this?

Regards
Thomas

Thanks, I have used the limit and works great.

And then added a low-tech solution:
I added a new Warehouse with a shipping cost, which will be removed when a coupon is used.