My USD$7.99/mo grandfathered Google Play Music subscription is scheduled to renew in 2 days. There's no indication on my account that it will be cancelled.
If I recall correctly, I did run into an issue in the past where it was incorrectly cancelled, and I had no trouble getting it restored at the same price by contacting support, but that was a long time ago, so it's hard to remember. And I'm pretty sure it was partially an issue on my end--my bank was declining the charge or something. When the charge finally went through, it was $9.99 instead of $7.99. I think. My memory is terrible.
If I recall correctly, I did run into an issue in the past where it was incorrectly cancelled, and I had no trouble getting it restored at the same price by contacting support, but that was a long time ago, so it's hard to remember. And I'm pretty sure it was partially an issue on my end--my bank was declining the charge or something. When the charge finally went through, it was $9.99 instead of $7.99. I think. My memory is terrible.