Hello, I am having weird problem with blockchain.com wallet and I am afraid I have no control over my bitcoin now. When I try to send bitcoin I get message insufficient funds, although I do have 900$ in my wallet and I can't send even 1$. Upon googling this I see many negative experiences in blockchain.com, including this insufficient funds error. I wrote to support, but I am afraid I won't hear from them anytime soon. Any advice is appreciated
Blockchain.com is a custodial wallet since you will need to create an account with your email to have a key to your wallet. There’s same issue in the past here that has a similarity on your case but I don’t remember it end well.
Your best chance is to contact their support since your funds is on their control because you don’t have the seed phrase to your wallet that you use to import on non custodial wallet. I remember they are using login keys to access their wallet account.
Always remember not your keys not your coins. Keep connecting to the support, that’s your only choice.
Edit
I just notice that they have 12 word secret private key, do you already try to import it on non custodial wallet such as electrum?