I still have not been paid for sales made in MAY and JULY. It''s great that you seem to be racking up sales from my images, but I haven't had one payout since Sept 1, and am now owed more than $600 for 12 unpaid sales.
LightPhoto
You probably know all this already, but for the sake of those who don't:
1. Is the $600 in your cleared balance? Meaning, >$600 was showing as your 'current cleared balance' on your homepage on 31st Oct.

In my example, as I was paid this month, I have $25 in my cleared balance. (My actual outstanding balance is c$195)
You get paid if your cleared balance is >$75 on the last day of the previous month.
2. If it is showing as cleared, have you contacted
[email protected]? They are usually very helpful (even if you don't always get the answer you wanted or expected).
3. If you have sales from May which haven't cleared, again contact them to make them 'nudge' the buyer. When I've done this, I usually get a possibly-canned answer about how the buyer has 'so many' months leeway to pay on account, but normally the payment comes though fairly soon after.
And, BTW, congrats on netting >$50 average on Alamy sales. My average net is
much lower.