Follow Ups/Extra Information. Most recent is listed first.

The final account is Nigerian. Don't send money to a Nigerian bank account. Please read below....
THE UNITED NATIONS OFFICE OF INTERNAL OVERSIGHT SERVICES (OIOS)
Attn: .
Sir,
Your mail is received, and contents well understood.
I, Mrs. Heidi Mendoza is the United Nations (UN) Payment Team leader sent from UN New York Headquarters to Africa for settlement of all form of debts owed to individuals/companies as a result of scam all over the globe.
Our mission to Africa will not be completed if all the affected beneficiaries did not confirm their funds into their respective bank accounts. And we are not here to cut a palm tree and watch it grows again.
The Office of Internal Oversight Services (OIOS) was established in July 1994 as an operationally independent office that assists the Secretary-General in fulfilling his internal oversight responsibilities in respect of the resources and staff of the Organization through monitoring, internal audit, recovered debt settlement, inspection, evaluation and investigation. The Office has the authority to initiate, carry out and report on any action it considers necessary to fulfill its responsibilities with regard to its oversight functions.
The Office assists Member States and the Organization in protecting its assets and in ensuring the compliance of programmed activities with resolutions, regulations, rules and policies as well as the more efficient and effective delivery of the Organization’s activities; preventing and detecting fraud, waste, abuse, malfeasance or mismanagement; and improving the delivery of the Organization’s programmers and activities to enable it to achieve better results by determining all factors affecting the efficient and effective implementation of programmes.
Your name was discovered while we were making search of scam victims, hence our first letter to you that you never replied. We are releasing and paying contract and inheritance funds, to payment to beneficiaries. Others includes: Lottery Winnings, Fake Bank Transfer scams, fake money orders, fraudulent online shopping, dating scams, charity scams, check transfer and ATM scams etc. In all, if you have been SCAMMED in any form from any part of the globe; do not hesitate to contact us for recovery of your monies and immediate settlement.
Having discussed with President Muhammadu Buhari of Nigeria, he assured us (OIOS) that all payments must be release and transfer to beneficiaries through the Governor of Central Bank of Nigeria (CBN), and on one condition. The condition is procurement of a Presidential Irrevocable Guarantee at the cost of US$255.00 by each beneficiary, and the Presidential Irrevocable Guarantee will authorize the Governor of Central Bank of Nigeria (CBN) to release your funds without further demands of money from you again.
Sir, you are to fill the attached UN/FGN Form and return to us immediately. Whereby you don't confirm your expected amount, the United Nations General Assemble (UNGA) have instructed the OIOS to pay US$10m ONLY to this category of beneficiaries.
You have been told that the Office of Internal Oversight Services (OIOS) will be leaving Nigeria to Benin Republic, enroute Ghana, Senegal, Mail, Guinea and other African countries by July 31, 2019 based on the United Nations General Assemble (UNGA) decision to handle other payments therein. Therefore, endeavor to procure the Presidential Irrevocable Guarantee as earlier as possible to enable the OIOS finalize your payment on or before our departure time to other African countries.
The Presidential Irrevocable Guarantee is the ONE and ONLY 'Payment Instrument' you required to confirm your fund into your account, but if you can't afford procurement of this particular document, I am sorry, the OIOS cannot do otherwise to get your fund release/transfer to you. Besides, you are not spending additional money in order to receive your fund outside this US$255.00.
It is like you knows that the OIOS do not accept sending of money from beneficiaries through Western Union, Money Gram, RIA, Walmart, etc. The US$255.00 must be send through a bank account. But the issue is that you have to send it to a bank in Nigeria so that money will be pick up here and we procure the Presidential Irrevocable Guarantee endorsed by President Muhammadu Buhari of Nigeria.
Sir, the OIOS do not own a bank account in Nigeria, therefore, we make use of a merchant account, but he always collects US$30.00 from each US$255.00 paid into his account. In that regards, I will advice you to deposit US$285.00 to the below account. By the time the account holder takes away US$30.00 from it, we will be having US$255.00 remain to procure the Presidential Irrevocable Guarantee for you.
You are advised to pay US$285.00 through the below account.
Intermediary Bank: CITI BANK NA Address: 111 WALL STREET NEW YORK, USA. Swift Code: CITIUS33 Aba Routing no: 021000089 Bank name: DIAMOND BANK PLC Address: 25 ASA-AFARIOGUN STREET AJAO ESTATE ISOLO, LAGOS, NIGERIA. Account no: 3X1X1X09 Swift code: DBLNNGLA Sort code: 063150049 Further credit to: 0001X0X2X9 Final Beneficiary Name: ACHIONYE ERNEST I. Final Beneficiary address: 4 ANIFOWOSHE STREET, ABULE EGBA, LAGOS, NIGERIA. Purpose of payment: GIFT
Make sure you include Further credit to: 0001104289, Final Beneficiary Name: ACHIONYE ERNEST I. on the transfer form you will fill to enable the money get to the final beneficiary.
Scan and send payment slip to me via email attachment immediately you make the payment.
I attach here my UN ID.
Yours,
Mrs. Heidi Mendoza. Undersecretary General for the United Nations Office of Internal Oversight Services (OIOS) Tel: +234-803-819-8375