Although it has been in place for more than a year, the only question ban I've encountered on any Stack Exchange site was a temporary one that would have supposedly allowed me to ask one more question on the Physics Stack Exchange after it would've been in place for only six months, with subsequent questions allowed if that question would appear satisfactory to the staff. The ban, never removed, resulted in my posting a question, today, on the Astronomy Stack Exchange instead. As there would appear to have been some oversight, I'm wondering whether I'd have the option of transferring the question to the PSE site. (I'd like to get the answer from Meta before any transfer or duplication of the question, but, if either the transfer of the question between sites or its duplication on the PSE site might be arranged, I'd like to know.)
If you're unable to improve your existing questions, you'll get the chance to ask one 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.
In other words, you had one chance in March and your question was not well-received so the ban was reinstated. You will have another chance in September.