Yes I was contacted by my husband's sister, whom I hardly knew and had only met about three times. We didn't even apparently have a great deal in common.
She came quickly and briefly soon after her passing to ask me urgently to pass on a message to my husband....which I did. Yes she had a definite purpose.
Even when it was verified (something I had not known about before) -even then, at the time I still took some convincing about the reality of "life after death" (!)
It took a little more time and experiences of another nature to 100% convince me.
That lady has not been back to visit me since. I wish her well in the afterlife.