Please explain to me what happened when the aUSD token sent to another address

about one month ago, I sent 2M aUSD token to Binance mistakenly: HELP! I lost 2M USD by mistakenly sending aUSD to binance
yesterday, they finally returned most funds back: Arbitrum Transaction Hash (Txhash) Details | Arbiscan
(well, they took 5%, ie 100000 USD, just for action fee)
I want to ask they also return the interest during this one month, that’s about 5703 aUSD still located in their address: Address 0xe4b5b2667e049ac8c79ae6c5a7e3300815aa32be | Arbiscan
, minted by these four tx
0x47ae2cc623f18c69ef9c5db620f5fb87353b65d373b891753030e1e3effe7f3d 142aUSD

0xdde2bd8b2bc094950276db65576e56ee939f5202f3cfed322db1ea426650850c 1728aUSD

0xad0a12f7cfec41e98b4cdef83fed23ab81d825606b614e3815839a5e91a2db4c 467aUSD

Arbitrum Transaction Hash (Txhash) Details | Arbiscan 3347aUSD

however, the binance support told me these aUSD should not belong to me, because they are sent from 0x0000000000000000000000000000000000000000 , binance can only return funds to this sender. I told them the interest is from smart contract, not this null address, but seems they didn’t understand. They asked me to provide some “office documents” to explain this issue, to prove these 5703 aUSD additional funds are interest for previous 2M aUSD token.

where is the right “office documents”? can you help?

Your deposit tx on Aave / the aToken buy transaction and explaining the dynamics of the protocol should be enough IMO.

thank you JosepBove, where can I find the related doc?

today, I just received additional 100k USDT for the over charged 5% fee. I am so happy they also returned thousands of USD profit several days ago.