I'll answer your questions on the following topics: Copywriting (I'm pretty good at this), Marketing, Advertising, E-commerce, Direct Mail (mainly Postcard marketing).
I'm an extreme introvert and I hate phone calls. So I'll only do text chat.
My business relies on email marketing as the main channel. Great ROI, easy to implement.
I've been writing copy for my own company since 2008. And I'm good at it.