Can you give us some additional information about the whole case? Everything is a bit confusing to me, I apologize if you have already written somewhere.
First, when did the disputed transaction take place? Given that you haven't been in the Sinbad campaign for a while, I assume it was even earlier. Is this transaction before or after the sanctioning of Sinbad?
Did you receive the payment from the campaign directly to your Binance account?
As far as I understand, you got this via email, do you have any notifications on the Binance dashboard?
I was part of the Campaign as Full Member, payments must have been roughly June-August.
And yes, payments were directly transfered to Binance (now i know that it might be a good idea not to chose a CEX adress for campaign payments).
On 29th November i recognised Mail from Binance, which i first thought was spam. On 30th November i logged into Binance to check and realised that sinbad transactions were meant. I guess notifications were on both ways simultaneously.