Need help accessing my wallet - created by linking Google account

Hey everyone happy Thursday

I'm just having trouble claiming the NFT reward from the August AMA, it says I received it at this address: did:abt

That wallet address was created automatically for me when I created my account on the ArcBlock website by linking my Google account. The problem is that I have no idea how to gain access to that wallet as I was never given a seed phrase or any recovery information when it was created.

Any help is appreciated, thanks!