I used Google Chrome, Mozilla, Opera, Edge... also VPN, socks etc...
I have sent them 40 support messages but no answer on 2 months !
What should i do? I don't have the secret private key recovery phrase... only email/ID and password.
I use yahoo.com mail
Yahoo mail is very bad, and this delay in receiving the message may be a problem related to Yahoo servers, so try all the browsers that you mentioned that you were using to log in, do not open an incognito window of the browsers, If you are using a VPN, you should carefully know which country of the countries you were using its IP, And you can take a look at your old inbox messages for the blockchain to know the correct IP, Contact customer service on all their social sites, and I hope you will find a response from them. Also, if you restore your account on the Blockchain, I advise you to change your email from Yahoo to Gmail and transfer your bitcoins to a hardware wallet.