Four Premier League clubs have written to UEFA about the circumstances surrounding European finals.
The finalists from last season's Champions League and Europa League finals have spoken.
Chelsea, Arsenal, Tottenham and Liverpool have each written to UEFA with complaints about events surrounding their games.
Clubs are unhappy at the number of tickets available to their fans, along with hotel and flight issues in the lead up to the games.
Arsenal and Chelsea were also unhappy at the location of their final in Azerbaijan.
Gunners star Henrikh Mkhitaryan, who is Armenian, did not play in the game due to security concerns.