Givenergy App Play Button?

I found out about the Play button on the Givenergy App from this forum having used the App for over a year. I had never seen the play button before. I noticed the big green arrow and then discovered the hidden feature I had not seen before.

Then, a couple of days later of the Play button no sign.

Is there an option to display or remove the Play button which accounts for its recent appearance and now disappearance?

How can I display the Play button?

Roy124 On the app, goto the hamburger option (top left hand side), then choose prefernces. You then select Quick Settings button