How to send a kind message for help?

If it weren't for I wouldn't bother you ...

But for your help, we might be dead now. ....

Hello, director, what do you think is wrong with me doing this?

Secretary, please help me see what's wrong with this plan.

I'm sorry, chief. I'll check this business thoroughly to see if there are any problems.

Chief, I'm afraid I made a mistake and caused you trouble. Please see what's wrong with me.

Leader, this won't bring you trouble.

I'm really sorry, chief, but it's okay to make this change.

Your help is a timely help.

I really appreciate your help. I will repay you later.

I really appreciate your help. This really reduced our expenses.