here is an example of a letter that i want to reference and get from an image error letter on google. Currently, I am about to apply for a job, so I want to refer to this photo to learn from experience when writing a job application. please show me the mistakes (1. Grammar error, 2. spelling error, 3. incorrect grammar, 4. incorrect greeting, 5. inappropriate close, 6. improper tone, 7. informal greeting) in the picture below:

58 Fleet Street Surrey Hills NSW 2000 Ph: 9868 7788 Foxx: 8038 7755 - | Hi Geraldine, This is the second time we have wrote to you about your account. Having to write to you once again really such a waste of time. You need to pay it by 27 March or we will take leagal action. | So please pay to avoid us having to go to all this bother. if Gillen Millie Gilbert Administration Assistant