Is this text correct?

My name is Robson , I’m a new accounting coordinator at Contabisit.ltda. Unfortunatelly Mr. Paul is no longer working with us. Regarding the FUST LTD. 2023 Income Tax Return I will be responsible for filling it.
As refered, the deadline is July 31, 2024, and as soon as possible I will send you the complete form containing the W100 registration.

Question

Is this text correct?

My name is Robson , I’m a new accounting coordinator at Contabisit.ltda.  Unfortunatelly  Mr. Paul is no longer working with us. Regarding the  FUST LTD. 2023 Income Tax Return I will be responsible for filling it.
As refered, the deadline is July 31, 2024, and as soon as possible I will send you the complete form  containing the W100 registration.

Answer

Corrections (note the punctuation and spelling especially):

My name is Robson. I’m a new accounting coordinator at Contabisit.ltda. Unfortunately  Mr. Paul is no longer working with us. Regarding the FUST LTD. 2023 Income Tax Return, I will now be responsible for filling it.

As previously communicated, the deadline is July 31, 2024, and I will send you the complete form containing the W100 registration as soon as possible.

Hope that helps!

Answer

Just checking...

Filling it. 
Do you mean completing it?
Or...
Filing it? 
Sending it to the tax authorities? Submitting the tax return? To file a tax return.

Complete form?
The whole form, not just part of it?
Or...
The completed form, with all sections filled in or completed with all the information required?

Answer

Esta muy bien, solo tener en cuenta que cuando termines una oracion en un punto (.)

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