Translation of zusammenlegen

I.E. stands for 'in example', and the translation of it is 'por ejemplo'. Is there a difference between this term in Latin American or South American Spanish? How would you say the same sentence in Central America?
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
The first 2 are available for 400 euros. The 2 additional tickets I am offering for 600 euros each. That is: For 2 tickets, it would be 800. For 4 tickets it would be 2000 Euro in total.