https://en.wikipedia.org/wiki/Premier_League#Corporate_structure

Okay, I've read it. Quote for me the part explaining that clubs do not decide how much to charge for tickets. I note that the word "ticket" doesn't even appear on that page once, so I'm pretty interested in why you thought it would support your point.

Also read the first 4 lines of the article this post is about.

Done. Here are the exact words:

The majority of clubs in the Premier League are planning to introduce a proposed £30 cap on tickets for away fans next season even if the top flight fails to make it mandatory.

So according to you this means that even though every club decided years ago to make the league the arbiter of what they should be able to charge for tickets... there was somehow the need for various clubs (who remember, already have this arrangement according to you) to vote for a measure making taking that power out of clubs' hands.

Another vote is expected at the next summit of Premier League clubs in March after at least seven teams — Arsenal, Manchester United, Manchester City, Liverpool, Tottenham, Chelsea and West Ham — opposed the cap this week.

So somehow the league which has full power over what clubs can charge for tickets could not stop these seven clubs from deciding to continue doing what they've been doing all along... which is decide what to charge themselves? Interesting...

The mood of the other clubs is to carry on regardless by having £30 reciprocal agreements with all like-minded clubs.

Why would they need reciprocal agreements to enforce something that - according to you - is already in place?

But that's by the by: This is now the fourth or fifth time I'm asking: Show me this evidence you have that clubs do not and have not been charging whatever they like for tickets all this time.