Seller let me know that they didn't have all the items in a bundle I purchased, cancelled and then *blocked?*

I don't understand why they blocked. I ordered a bundle listing from them, and they later messaged me that a few items in the bundle were no longer available, and that they would cancel.

I'm a little annoyed, because I don't see why they would post a bundle AND put the same individual items up for sale. I noticed that on their page and assumed they had multiples, but this was not the case.

Anyways, I just said I was bummed, but yes, please cancel and thank you for doing so. They did still have other stuff I had my eye on though. So I went to like a couple other items, and they blocked me!! I don't understand why they would do that :( I was not rude or even super expressive with my disappointment. Can anyone offer any insight? This sellers account is 2 years old with almost 100 sales, all good reviews.

Ultimately, I'm a little butthurt about being blocked lol. Also is this a normal practice to post a bundle listing and post the same items individually? I feel like that's not the best practice, but if that's normal and common, I'll start being more careful moving forward.

TIA!