I am sorry to hear about your experience. I'd like to check on this for you. Could you please send me a PM with the link to the job posts you mentioned so I can check with the team? You can read more on this help article and also, please check out Tips to avoid questionable jobs. Here's another helpful article that you may want to read to learn more about how you can stay safe on Upwork.
Estefanie L wrote:
My first interview of today and I have the same issue. They even went in as far as to say an email check for me to print. The sent check was to buy the needed items for the job and they couldn’t even provide proper credentials. What a joke
You may want to check Upwork's terms of service before applying to any more jobs. You violated Upwork's terms of service by communicating with a "client" outside of Upwork and by accepting payment outside of the platform.
Those rules are in place (at least partly) to protect you from scammers, so by not violating the terms of service you can protect yourself from getting scammed (and from your account being suspended, too).