I can not withdraw BTC from my wallet to blockchain.info. There is only FAQ instead of support chat.
Blockchain.com is well-known and I personally have not had issues with it. This isn't to say that your claim is untrue, but you have not attached any pictures, videos, or links. It's just a statement. I recommend you at least screen record the issue you're having and post it here, so myself and other users can help you troubleshoot the problem. Also, if I remember correctly, Blockchain.com uses a non-custodial wallet system, which means if you have the recovery seed words you were made to backup, your funds are always recoverable regardless of whether Blockchain.com's portal is down.
Some very basic suggestions would be, double-check to make sure you've entered the correct identifier and password. Make sure the address you're sending to is a valid BTC address, and make sure that you have enough to pay for the miner fee (you may be trying to send your entire balance without accounting for the fee). We can help you out further once you let us know what the error message is that you're seeing.