Originally Posted by
davrossuk
... but I have never used or even heard of Absa or uCount.
ABSA is a South African bank, which is currently a subsidiary of Barclays Bank:
https://www.absa.co.za
UCount is a rewards scheme operated by Standard Bank (of South Africa):
https://ucount.standardbank.co.za/personal/
And avios.com has a South African scheme, so all of this is consistent with an emailing glitch rather than anything weirder or more sinister.