These "mining" services that force you to create a blockchain.info wallet, fund it and pass your wallet info to them are always a scam.

In order to fund a wallet (pay you), the only thing somebody needs is an address generated by your wallet... NEVER EVER give somebody access to your private keys, password, unique identifier, wallet file,...

Since you've asked this basic question, i'll give you some friendly pointers that relate to this question:
- Private keys are private, never share them, never share ways that can compromise private keys (wallet files, seeds, xprv, identifiers, passwords,...). Make sure you don't give other people unauthorised access to your PC so they can steal your wallet (don't install shady software, don't let an untrusted person take over your desktop with teamviewer or VNC,...)

- Stick to desktop wallets on a clean pc, airgapped wallets, hardware wallets or paper wallets... Don't keep your funds in an online wallet or exchange

- BTC mining is a business, you can't mine using a cpu/gpu/outdated ASIC or if your power price is to low... Cloud mining is allmost always a scam