Correct sentence structure and grammer

Hi,

I've made some changes.

1.

Sorry, we don't quite understand your request.

Do you want us to cancel the fares and text for Group 1 or Group 2 (as shown below).

Please advice us of your actual intent as soon as possible.

Sorry for this inconvenience.

2.

All of this work has been completed, for your review.

We will consider this as closed, unless you advise otherwise.

Thank you and regards.

3.

With regard to this, these fares and text have been updated in the system, as attached.

Thank you.

4. 

We have completed updating in accordance with your request. Please review this.

Best wishes, Clive