I was happy paying for Premium until they doubled my subscription fee out of the blue.

I was a day one Google Play Music All Access subscriber, supposedly grandfathered in to a lower subscription fee, but all that ended up getting me in the end was “Sorry, but it’s your turn to pay up now. We know you were supposed to be grandfathered in so we’ll give you a few extra months of your current rate after we bump up the costs for everyone else.”