If you're expecting a credit from AMEX, make sure you monitor it carefully.
I recently signed up for the $400 supermarket offer, and even though the T&Cs suggest credits are available at both Coles and Woolworths, I've only been getting credits from my local Coles. (I'll still get to $400 before the offer expires, no doubt, but for those who only shop at the one chain, definitely worth checking.)
Shop Small is all over the place - I've had credits come through on the next business day after a transaction has been finalised, but some are now stretching 1.5 weeks without a credit, and some eligible purchases made last weekend crediting and others not, despite confirming on the map that all should be eligible for Shop Small (the businesses didn't just appear in the list like most stores, but also had the Shop Small logo beside them on the AMEX site).
Good to see the emails are back - should make things easier going forward, as I can't think of a time in the past where I've received the email but haven't also then received the credit afterwards.