Why can't I have another trial on Fitness app?

Hey there I have trialled the Apple Fitness app quite a while back and I want to give it another go. Apple says I can’t as I have already trialled it! I’m looking for a seven day trial to see what it looks like now and might then subscribe long term. There is no benefit to me to get a trial for 7 days apart from possibly sending more dollars Apple’s way. So why won’t they give you another trial?

[Re-Titled by Moderator]