The DIY SOS presenter’s spouse previously alleged that he was refusing to pay their little boy Eddie’s private school fees despite reportedly agreeing beforehand.

The mother-of-one, who wed the star back in 2012, went on to say that he was “physically abusive” to her in an open letter on Twitter.

However, Nick’s spokesperson has since the Sunday Mirror: "These allegations are not true but Nick will not be responding publicly in an attempt to minimise the negative impact on his son."

Following his denial, Jessica posted a second statement online, claiming he maybe be intelligent but he’s “not smart”.

She posted to her 6,006 followers this afternoon: “He is now denying that he withdrew his promise to send Eddie to private school but it was sent by his solicitor to mine.

"He has also denied years of cruelty but I do have diaries and photographic proof.”

Jessica went on: ”All I want is for him to keep all the promises he made to me and Eddie when he walked out of our lives to have a string of girlfriends after abandoning us in Spain.

“If he does not keep his promises my only option (since I can't afford to fight it legally - which he knows) is to publish all that I have including witness statements because at that point I will have nothing to lose."

Meanwhile, an insider claimed to The Sun that she was “just angry” because he had reportedly refused to her increase her “already generous payments”.

They said: “It's just not true. Nick is one of the most generous men I know and has made substantial financial provision for Jess and Eddie as he does for other members of his family and his children.

“… He has put his other three children through private schools and he’s hardly going to make an exception for Eddie whom he absolutely adores.

“He won’t be drawn into a public slanging match with Jess and wishes her nothing but the best. For heaven's sake, he took her and Eddie on a fantastic luxury holiday to Barbados just a month ago as friends - hardly the actions of a selfish man who won’t pay the bills.”

It come just hours after Jessica claimed that Nick would not cover Eddie’s schooling, while stating: “After years of intimidation, emotional cruelty, abuse and eventually isolation (that I have kept silent about — of which I have diaries and images), this is the straw that broke the camels back.”

She went on in a lengthy post: “My husband has also said he will not purchase a house or give a settlement of any kind for us, this is disappointing but not unexpected — some people’s generosity is only present in front of TV cameras.

Since he was born my sole priority has been Eddie’s well-being and I felt my silence was in his best interest but years of abuse and bullying have taken their toll and now I have to fight, which isn’t in my nature, but I’m fighting for my son. What mother wouldn’t.”

Express.co.uk has contacted a representative for Nick Knowles asking for comment.