Yes, and the only thing I would add would be that as a candidate, once you start accepting contributions or incurring expenses for your election, even if it's before the writ period, the bank account has to be opened because all those contributions and expenses have to go through that bank account. Also, in closing, once all the transactions of the campaign are done and the surplus is disbursed, that's when the campaign bank account is closed.
On October 17th, 2018. See this statement in context.