Same thing happened to me after a simple test E only cycle with an epistane kick start about a year or so back. Mine was a bit higher than yours, I think almost 30 but can't remember exactly. Same as you, no symptoms libido and mood were fine and no signs of lactation or gyno.
It eventually normalized on its own but is still a little high to this day. That cycle I lost some gains after PCT (obviously), but the high prolactin didn't really mess up my physique in any noticeable way, I continued to make gains in future cycles and training. If I were you I wouldn't worry about it too much unless you start seeing symptoms or feeling differently