I hope you haven't deposited a big amount. If you read the forum thoroughly surely you will find many topics which explain with proofs that all cloud mining websites are scams. It is the first time I hear about metizer but after controlling their site I can say it will be another big scam.
This isn't strictly true. Most cloud mining services are scams as they often suggest static payouts and do not explain block difficulty - this means that they are essentially Ponzi schemes claiming to invest in Bitcoin, which they obviously do not.
However, cloud mining sites are not inherently Ponzis, it's just that they are very hard to trust due to the lack of available verification.
You need to understand what Ponzis actually are though. Ponzis might pay out at first, they will just turn scams as they pay out with the investment of later investors, which is why you need to avoid them so well.