"Tell" is one of the words in the drop-down suggestions; is it something you just have to know is wrong?
I had "I want to tell my lawyer" the first time. Was that really wrong?
"to tell" would not be appropriate in this case. However, the Vietnamese sentence does not sound right either. Will re-evaluate.
If only it was 'I want to speak to your manager!'
I think 'talk/speak with' is more appropriate. The list should have 'say' and 'speak'
Looks like someone is about to lawyer-up!