How to Remove ex-Wife from Absher, Unmarried to Single

Greetings,
I am struggling to find out how to remove my ex-wife from my list of dependents on the MoI website/ Absher and change from married status to single/unmarried.
If anyone knows how to do this, I would greatly appreciate being told how as it is overdue. I have not been able to find this info anywhere and I have been searching for several weeks.
It was not a marriage done through courts; just done the Islamic way by an imam in London. The divorce was also done that way, by notifying two witnesses after pronouncing divorce.
My ex-wife will start a new job and her employer will give her sponsorship. I am led to believe that once she gets her new iqama, she will come off my sponsorship but I don't know if that will take her off my list of dependents and doubt if it will change my status from married to unmarried/single.
The other thing is that until I get this resolved, I am liable to pay dependent fees for her even though she is not my dependent anymore so i really would like to get this sorted.
I hope someone can shed some light on this issue.