Where can I write a bug report on windows phone?

Question

Windows phone

An unpleasant bug was found in the work of windows phone 8.1 (system application) It is also reproduced on several different phones, that is, the problem is not a specific instance.
There was a desire to write about the problem, but I could not find where microsoft can do this. There was only a forum where ordinary users mostly answer, and a platform where users express their wishes for new features.
Does microsoft have a bug tracker?

Answer 1

I write directly to Twitter with similar questions https://twitter.com/Nawzil8
Always helps / answers / solves