Applescript to add mail content to spreadsheet

Please help I know enough to be dangerous with Applescripting

I would like to add a script to a mail rule to put my banking transaction notification email into a spreadsheet.

I would like to extract the records from the text in the Mail subect line and put them into a spreadsheet with 5 Fields

The incoming mail has a subject line with -----

"RMB Private Bank:-) R553.85 paid from Single Fac. Acc..009939 @ Scheduled Pymt. Ref.Hamptons Levy-17. 28Sep 06:13"

I would like to add this to spreadsheet called "inContact.xlsx"

Using Fields

1. Account - "RMB Private Bank"

2. Amount - "R553.85"

3. Date - "28Sep 06:13"

4. Item - "Hamptons Levy-17"

5. Card Details - "Single Fac. Acc..009939"

Can anyone help PLEASE