Eliminate the unnecessary words in the following sentences:

1. We are in receipt of your expense report, but due to the fact that it contains errors, we need to discuss it with you as soon as possible.

2. Per your e-mail, we are sending you the report in regard to our analysis of the Patrick Co. reengineering project.

3. Please be advised that, as of January 10, 2009, we will no longer authorize work on the Javia account.

4. To ensure that the optimal conclusions will be drawn, it is absolutely essential for you to ensure the analysts are given any and all data that are necessary for effective completion of the analysis assigned to them to complete