Will I receive the option of live chat with instructor after purchasing the course or subscription?

That depends on the instructor. In general, we don’t have live classes or live consultations. There can be a few obstacles but the main one is different time zones. But if the instructor agrees, we won’t have anything against such possibility. And if there will be a demand among students and a willingness from the instructor, we will help in the organization. If you need to talk with instructor, there are other channels you can use: forum, comments under units or private message.