You should ask her! But it sounds as though there has been no refusal, or there would be a refusal statement.
You were told before that payslips were needed, so there is nothing contradictory there. Also, with regard to the timing, as you need time after the wedding to make the application then this could cause a problem. For example, if the last day of the visa is a Saturday, and you get married then, she will automatically be an overstayer as there is no way to send the application recorded delivery that day!
Apart from the first thing, the request for more info seems reasonable. Add bank statements and payslips, move the wedding forward, and it should be okay.
Vicky