Update Jan 2019: I have now figured out a way to resolve this issue. Every person who purchases a course from me also gets access to office hours with me. I have left the older post below for reference if you have already stumbled on it.
If you are a EU resident, or the VAT/MOSS laws somehow apply to you, please read my post here. (Summary: You can only purchase my courses from my Gumroad account and I will have to manually enroll you into my courses).
Speaking of bundles, here is what a reader recently wrote me:
I started going through your articles since last 2-3 months. At first I happened to come across one of your article as part of Google Search and that lead me to your web site, where i found few more articles which were very interesting providing quality content specifically about Dialogflow.
After reading few articles, i subscribed to your articles through and eventually i came to know that you are offering course bundles. So i spend some time to figure out what is the best and optimal way to buy the course material. But just around black friday ( few weeks back) i got a promotional offer to buy the Dialogflow Toolkit course and i just grabbed it without any second thought. So, there absolutely ZERO hesitation or second thought in buying the bundle let alone preventing me from buying it.
Sometimes I offer discounts on my courses. In that case, you can purchase the course from Gumroad at the discounted rate (check if the discount is still valid first), and then send me an email and I will enroll you into the full course.
And if you have any feedback/concerns/questions, please leave a comment below. Also, if you know of a way I can continue to sell my courses directly via my course website without having to do the invoice reporting myself (Gumroad does it on my behalf, and takes a cut from the sales), do let me know in the comments.