When I was doing iOS apps around 2016, there was a simple way to request a refund if you purchased sth by mistake. I think it was a web form using your Apple id

When I was doing iOS apps around 2016, there was a simple way to request a refund if you purchased sth by mistake. I think it was a web form using your Apple id. The amount was autocredited back to you immediately. Not sure if this was the norm back then, and if it is now.