I don't have an Absa account and I received this email.
Be aware, this cannot be from the bank.
The email address it was sent from is: Absa - <firstname.lastname@example.org>
The email reads:
Some incorrect attempts to your online access was detected
and for your safety have temporarily deregistered your
Please respond to this by confirming your identity to
show you are not currently away.
Confirm online access
You are advised to comply strictly to this feature to keep your internet banking access from getting closed.