Greetings,
Two days ago, I have received an invitation email to a movie premiere next week. But, I have some questions regarding the invitation. Therefore, I decided to write an email to the sender.
“Dear Mr. XXX, Thanks for the invitation email you sent. However, in the email, it says that only 1 ticket has been reserved under my name. Therefore, I wonder does that mean it includes the ticket of my partner as well?”
My question is: Although I received the email two days ago, should the words in bold have to be in the past tense in this context? and why?
Thanks for your time.
You have used the correct tenses in your response, as although you received the invitation in the past, you still have the invite and the event will take place in the future. However, the email could be better worded in general. I don’t know whether this is an imaginary scenario or not, but either way this would be my suggestion:
[i]Dear Mr. xxx,
Thank you for the e-mail you sent inviting me to the movie premiere of xx(name-of-movie)xx on xx(date)xx. The email indicates one ticket has been reserved under my name. Please can you confirm whether or not this single ticket will include entry for both myself and my partner, or whether it will only admit one person.[/i]
Incidentally, these are the tenses you should have used in the sentence where you introduced the scenario:
Two days ago, I have received an invitation email to a movie premiere next week, but I have some questions regarding the invitation. Therefore, I have decided to write an email to the sender.
Thanks for the prompt reply!
No, this is not an imaginary scenario.
If it is, is there any difference I wonder?
Thank you.
No difference at all RickyRocky. It just wouldn’t have been as important for you to get it right if it was a scenario, I suppose. 
Enjoy the film!
