Slater had tried to rescind his resignation offer which followed a disagreement with the league's deputy chairman Burt Hanson, over how best to deal with a complaint to Lowerhouse regarding the state of their outfield.
But the Lancashire league clubs this week voted to accept his resignation to rubber-stamp Slater's exit from the position after seven years.
Slater first declared his intention to resign after the Lowerhouse issue came to a head at a meeting of the League's executive.
And the executive then told Slater in a letter that it would not be in the best interests of the league if he returned.
The decision was then passed onto the League committee and other clubs but Slater feels let down by the executive.
He said: ``I feel betrayed by certain members of the executive. I was also disappointed I did not get more support from the league clubs.''
And Slater feels he should have been given more opportunity to defend his position, adding: ``I have always done things for the good of the league but they say in the best interests of the league they don't want me to carry on. I find that hard to believe. Nobody has told me what I have done wrong.
``I am very disappointed that the end has come as it has. I realise that it is my fault in that I initially resigned. But when I went to rescind my resignation I was confident that would be the case.''
Slater still hopes to have a role to play in cricket administration, however, and hopes to find a secretary's post with another league.