This was added to the "AskBA" thing day before yesterday:
Updated- Tesco / Sainsbury's - information
Question
Can I collect BA Miles at Tesco?
Answer
The position with regard to the collection of BA Miles is the subject of a dispute between British Airways and Sainsbury's. It is anticipated the situation will be clearer by 15 March and further information will be available at that time.
looks like someones been naughty
dnw