The blockchain wallet app on my phone says it can't verify the pin I use because the server is down and asks me for the Main password. I don't remember a Main password. Did I have one for sure? Can I ask for a new one or something?
If you have the Mnemonic Seed which was given to you at the time of making the wallet, then you can use that to recover your lost identifier/password but if you don't have that then Blockchain.info can't reset your password because for the simple fact that they don't store it on their servers.
This should go in Beginners and help or Service discussion. You can move it from the bottom left of this page.