All I have is a 17 word passphrase and I know exactly when the wallet was created. On the other hand, a cryptocurrency wallet service provider such as blockchain.info or Blockchain.com must develop rules of action in case the owner of the wallet loses access to the email from which he would have been registered. This is a fairly common everyday situation.
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I haven't received a response from support yet.
In their new wallet version, that would be the users' BIP39-compatible backup phrase that can be restored pretty much anywhere.
Yours, the old version, however do not have a choice but to rely on their support.
Your 17-word account backup phrase is just equivalent to your walletID and password.
Yeah. It's clear.
Nevertheless, the guarantee of restoration of the old wallet by the custodial service should be somehow definitely regulated. Here I am, knowing this 17-word phrase, trying to figure out whether it will be possible to restore access to the wallet with the help of their support. Access to the original email has been lost, although I know this address myself. It is generally impossible to restore access to this email. I also know the account number in the mainnet
BTC to which transactions were carried out in the wallet.
It is with this set of information that I am trying to conduct this experiment.