It means to do something reasonably quickly, or when it should be done.
This may be relative to what the task/request it's referring to. For example, a timely manner for a Pizza delivery might be 30 minutes. A timely manner to return a book you have borrowed from a friend might be a month or 2.
"In a timely manner" means "soon enough that it is not too late."
It means that they were unable to obtain your information in a timely manner.
promptly means in a timely manner
Assuming that you mean, in timely manner as opposed to in timely matter, the former means to do something in a reasonable about of time. For example, you could write in a letter for the respondent to reply to you in a timely manner, because you hope that they will reply to you soon.
the term manner means to have a mean manner.
He completed the assignment in a timely manner.
timely manner
why should financial information must be shared in a timely manner?
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Punctuality is a term that often refers to someone's ability to complete a given task in a timely manner. It is a positive characteristic that one should have.
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