Please help me this sentence, thanks

[Zoe2008]

Please stick to the schedule without further delay, otherwise, it will ship by air at your expense.

[apex2000]

Please stick to the schedule without further delay, otherwise, it will ship by air at your expense.

This is perfectly good unless 'schedule' and/or time are incompatible.

[Anglika]

Please stick to the schedule without further delays, otherwise, it will be shipped by air at your expense.

.