I applied for a Prospective Marriage visa, but my partner and I couldn’t wait to get married though and we have just tied the knot! What will happen to my visa application?

Your application will be converted into a Subclass 309/100 Offshore Partner Visa, if you are overseas, but if you are fortunate enough to have entered Australia on another type of visa, such as a Visitor Visa,  your visa application will be converted into a  Subclass 820/801 onshore Partner Visa.