### Chinese: 我希望你们能准时，不是想要你们的优惠券！！
### English: I hope you guys are on time, not want your coupons!!
### Errors: There is a major error of wrong grammatical register (eg, inappropriately informal pronouns). internal inconsistency (not related to terminology) at "guys". There is a minor error of incorrect translation has stylistic problems at "not want".

### Improved English: I hope you can be on time, and it’s not that I want your coupons! !