In a joint statement with the Professional Cricketers Association, the ECB said it had been a "matter of great frustration" that it had been unable to respond to "unwarranted and unpleasant criticism" during negotiations.
The bulk of the job may already be done, but England captain Alastair Cook is determined to deliver a final Ashes insult to Australia when the Test gets underway today.
Victory in Durham moved the hosts into a 3-0 series lead with one match to play, ensuring the urn would stay with England for the third time in a row.
Cook's side allowed themselves a well-earned celebration following their 74-run success last time out, but he was adamant there would be no loss of competitive edge at the Kia Oval.
He believes any Test match against Australia is reason enough to be at full tilt, but with the tantalising prospect of becoming the first England side to win a home Ashes 4-0 on the table, he expects his men to go in hungry for the win.
Cook said: "In our dressing room there are a lot of big rugby and tennis fans and watching that as a British sports fan is fantastic.
"Huge congratulations to both the Lions and to Andy. It was an incredible moment for British sport when Andy won Wimbledon and when the Lions won after such a long period.
"But it doesn't have too much relevance, unfortunately, to what we're about to do. It's about how we play, not how Andy Murray played in that final. We'd love to be able to join them in that success but there's a lot of hard work to do first."
Kevin Pietersen wrote a new chapter in English cricket history alongside Alastair Cook today as England seized the initiative on day three of the second Test against India.
Pietersen (186) and Cook (122) both scored centuries to move level on 22 hundreds with three all-time greats in Wally Hammond, Geoff Boycott and Colin Cowdrey as England's most prolific Test centurions.