If the removal of your feedback was due to what *tippy*toes* suggested, your replying or following up to your feedback (sounds like it could be the case) then why wasn'r just the follow up / reply removed?

I can understand your being upset over the whole thing.

And of course shoppingbag had the same issue

Unfair removal of negative feedback.

https://community.ebay.com.au/t5/Buying/Unfair-removal-of-negative-feedback/m-p/2363674#M116154