Surprisingly QoC18 got timing right for me. She said this person I was asking about would reach out in 2 days or 2 weeks. He reached out in 1 day (the next day). My reading was on 1/13 and he reached out on 1/14.
I will say though it does help to manifest or really believe in your heart that this person will contact you.
It also makes things easier if you remove any self doubt or limiting beliefs about the person first, in order to see something come to fruition.