Mention of Mbeki, Mandela and the ANC sounds impressive. But the letter goes on to ask for the use of the recipient's bank account for the transfer of $60m "currently kept in a security firm", and stuck in Nigeria due to exchange controls.
But as anyone knows the letter is just another stab at making a quick buck out of people's gullibility. What usually happens is that the victim is stung for "legal fees" in advance of the transfer, which never happens. Sometimes the outcome is violent: last week police rescued a Soweto man who was being held for a $500,000 ransom after responding to a letter.