Please give a explanations of the following words and sentences used by tax credit officials

Roedd y cais yn llwyddiannus.

Dear HM Revenue and Customs,

We come across the following note present into Tax Credit files and we request an explanation to the following and a copy of the documents when requested.

1) What you mean with the word: "Organised Attack" when those are inserted into a Tax credit file?
2) What you mean with the sentence: "Organise Attack risk" when this is inserted into a Tax credit file?
3) It is possible to have a blank copy, a sample, of a letter issued for "Organise Attack risk"?
4) What you mean with the sentence: "Organise Attack claim corrected" when this is inserted into a Tax credit file?
5) What you mean with the sentence: "Organise Attack Claim Terminated" when this is inserted into a Tax credit file?

Yours faithfully,

Nicola Guagliardo

Team, FOI, Cyllid a Thollau Ei Mawrhydi

Our ref: FOI2021/00844

Dear Ms Guagliardo,

Freedom of Information Act 2000 Acknowledgement

Thank you for your communication of 3rd February which has been passed to
HMRC's Freedom of Information Team.

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Yours sincerely

HMRC Freedom of Information Act Team

Team, FOI, Cyllid a Thollau Ei Mawrhydi

1 Atodiad

Dear Ms Guagliardo,

We are writing in response to your request for information, received 3
February.

Yours sincerely,

HMRC Freedom of Information Team