Both parties allege they're owed dollars by the other, with Sebastian seeking $200,000 in performance and other fees, and Day claiming his company 6 Degrees was owed hundreds of thousands of dollars from the Australian Idol winner, his wife Jules Sebastian and their charity, the Sebastian Foundation.
"What we are owed is still being calculated but I estimate between Guy, his wife and the Sebastian Foundation 6 Degrees is owed $800,000," the agent said in August 2018, according to The Daily Telegraph.
In an email response to press enquiries when Sebastian sensationally began the legal proceedings, he said "divulging sensitive information in a public court case" was not his or Jules' "style."
However, in 2018, Denyer also split with Day after eight years of working together, claiming that he and his wife, Chezzi Denyer no longer wanted to pay commission.
According to The Daily Telegraph, Sebastian parted ways with longtime manager Titus Day in an ’emotional meeting’ in 2017.
"After 12 great years together I’m very sad to be losing Guy as a client," he reportedly stated.
"But he is a wonderful talent and a good person, so I wish him well in everything he does," he continued.