I have read on the Physics S.E website that users get a chance to ask question after 6 months of question ban
If you're unable to improve your existing questions, you'll get the chance to ask a new one 6 months after your last question. If that question is positively received, you may be able to continue asking questions; if not, then the ban will be reinstated.
but my question ban is not getting removed even after 6 months,so what to do?