Chingching

Hi, do they check on your name and details or username as I have been sent (apparently) a refund but it's not as much as I expected. I had several email accounts with different usernames. Thank you.

Sorry if asked already, I wondered how they check as I had accounts set up through different email addresses and received emails to each address. I replied through each email address and have one reply to my main email address saying refunded an amount, but not to the others. Do they go by email addresses (different usernames) or actual name, address etc? TIA