Scammers are active all over the internet, sending fake checks and asking people to send money in return. If someone contacts you with this kind of request, it’s almost always a scam. Don't send money for training or certifications without verifying the company is authentic, has a website and other proof of being a legit business.
Never deposit checks from strangers or send money. Take a moment to verify and protect yourself. Beware of people contacting through Whatsapp about delivery opportunities and don't ever provide personal info to anyone without verifying they are a legit company. Request a copy of their business registration, ask for their business address, see if they have a website, and Google their business address to see if it exists.