I've never been able to get the byteball airdrop. I've downloaded the windows wallet, selected the chat, clicked the bot store, clicked the Steem attestation bot, Opened chat, and selected the "Insert my address (Small Expense Wallet)".
Address is populated in the chat, but nothing happened. I've done this 5 times since July 15, and there is no bot response.
The same happened to me. While the Byteball network was overloaded, the bot didn't reply, but something must have been logged so that I couldn't try it again either. Later, I installed the wallet on another computer, and it did work then.