I came across this earlier: https://www.theifo.co.uk/ - The Independent Football Ombudsman. They arbitrate on complaints by fans about football clubs, The FA etc.
Guess who is top of the league since they started?
Team Complaints
Manchester United 29
FA 28
Tottenham Hotspur 9
Liverpool 8
Arsenal 6
Brighton 6
Blackpool 5
Charlton Athletic 4
Hull City 4
Leicester City 3
Manchester City 3
Middlesbrough 3
Nottingham Forest 3
Southampton 3
West Ham United 3
Queens Park Rangers 3
Bristol City 2
Chelsea 2
Crystal Palace 2
Everton 2
Fulham 2
Huddersfield Town 2
Leeds United 2
Norwich City 2
Walsall 2
AFC Wimbledon 1
Birmingham City 1
Blackburn Rovers 1
Burnley 1
Burton Albion 1
Colchester United 1
Doncaster Rovers 1
Football League 1
Gillingham 1
Luton Town 1
Newport County 1
Premier League 1
Reading 1
Sheffield Wednesday 1
Stevenage 1
Stoke City 1
Wigan Athletic 1
Guess who is top of the league since they started?
Team Complaints
Manchester United 29
FA 28
Tottenham Hotspur 9
Liverpool 8
Arsenal 6
Brighton 6
Blackpool 5
Charlton Athletic 4
Hull City 4
Leicester City 3
Manchester City 3
Middlesbrough 3
Nottingham Forest 3
Southampton 3
West Ham United 3
Queens Park Rangers 3
Bristol City 2
Chelsea 2
Crystal Palace 2
Everton 2
Fulham 2
Huddersfield Town 2
Leeds United 2
Norwich City 2
Walsall 2
AFC Wimbledon 1
Birmingham City 1
Blackburn Rovers 1
Burnley 1
Burton Albion 1
Colchester United 1
Doncaster Rovers 1
Football League 1
Gillingham 1
Luton Town 1
Newport County 1
Premier League 1
Reading 1
Sheffield Wednesday 1
Stevenage 1
Stoke City 1
Wigan Athletic 1