In that case there are two option remain to recover your funds. I have tried now about reminder wallet id but seems it's not working, there is chances to receive wallet id via mail later on, so you may wait a bit more. Other 2 option describe as below.
1. If you have wrote down 12 word seed phrase then you may recover your funds, it will create a brand new wallet id for you and you have to set everything. Don't worry about your funds, it will be there but if your funds on imported address then likely it will not recover by this way. So for recover with seed phrase go to
Recover Funds2. Recover your funds login via json file (wallet.aes.json). Import your file that you have received via first mail during registration. Not sure if you have saved it on your device or mail folder. If not then this method wouldn't work for you. Anyway if you have this file drop the file enter your encrypted password if any (not blockchain wallet password). So you may go
Import Wallet.
If do not work above methods due to lack of seeds and wallet file then there is some other way to retrieve your wallet json file. I am not sure how its work but you may take a look how a person retrieve it. Referred to this thread
> I have recovered an old wallet.aes.json from Blockchain.info but its a raw key. Probably it would work if still you have access of your email address which is you have.
Eventually I will suggest like others, don't use web wallet. Move on any bitcoin clients/open sources wallet if you are unable to download whole blockchain ( for bitcoin core). SPV (Simple Payment Verification) like
Electrum. Don't forget to write your seeds on multiple paper and save it on multiple places as well to avoid future lose. Don't save your seeds on any online machine.