You can request money from someone with your SunCash account. The person you choose doesn't have to be a SunCash customer. All you need to provide is their mobile number or e-mail address, amount requested and a message. The person you are requesting money from will receive an e-mail with clear indication of how to respond to your request.
Once you receive a money request from someone, you will have a email, sms or notification pop up then by clicking on that you will have two options as accept or decline.
No, in the withdraw money section the only option is to withdraw money is to provide a bank account details under the same name of the SunCash account holder. But, you can send money to anyone you want under the 'Send Money' section.