i didnt find any information about source code on their website

perhaps as expected it will be published when the platform is ready, if it is now and in truth there is nowhere

yes, true. But better show something before start crowdsale

sorry, but do not know when the launch will be made?

if now sales have passed and there is no code, then plans to publish it later

that is, if they immediately sell team tokens this will be bad for the project?

is it known on which exchanges the project will be listed?

How does MJC work, is it embedded like a web plugin into e-commerce website so that e-commerce has alternative payment tools or invites e-commerce to join MJC Mall and become a single platform?

information about this has not been received, but I can be wrong

developers didnt announce any exchange. May be tokens still locked and there is no reasons to list on exchanges