I don't assume many folks here, considering the channel, would have purchased a subscription of any kind from Google Play. But I only recently discovered that whilst refunding apps within a certain time frame that are one time purchases are quite easy; refunding subscriptions are not.

Even if you report within 30 minutes of the subscribing, they say it doesn't meet their policy. (It was for a Podcast syncing/podcast app for WearOS. Considering that it had no server side component, I wondered why it was subscription based.) I still kick that I paid for one year instead of going to Mobilism and requesting the folks to see if the app could be cracked.