I am not receiving any e-mails from Tesco's? I rang Talk Talk and rep said it was Tesco's error, however I rang Tesco's again after this, I set up a different "gmail" address and Voilà!! I am receiving my Tesco receipts to the new address.
Are you not sending other e-mails talk talk, is it just the Tesco's one how would we know?!!
Bit of a worry!