~snip~
Much better wait on their response about your account because I have the same problem before but their reminder for wallet ID never received on my email that's why I decided to try to create another wallet with the same Email it works but no balance. I also don't have the Keystore or any backup of my wallet. I tried to contact them before it was 3 years ago just to know my wallet ID back but never receive any message from them.
I think that you save the seed phrase or any important backup because I think the blockchain wallet app will ask again for the seed phrase to verify if you already write them down or have the backup copy of your wallet before the wallet will successfully be created(This is just what I think).
Honestly, I stop using this wallet because it's always online so it's not always safe to use the wallet.
Next time if you are in a hurry making your own BTC address you can use Electrum in mobile which is better option than blockchain.
Can you make a screenshot of your blockchain wallet icon?
There are three option in playstore
The one blockchain wallet is fake so you might be using the fake one that's why you can't be able to receive any reminder from your email.