I am using the free version but was using a business account at my last job. I left that job over 2 years ago because it went out of business. Apparently, the service renewed after the company went out of business and it had a past due invoice. It blocked my personal iPhone from using my free account because I had used it with the paid account before.
A few days ago, I got a new iPhone and tried logging into my free account and I got the message that the business account was recently used on this device, which is impossible. How can I remove this restriction? This brand new device is in now way related to the company I worked for 2 years ago.