Enforcing court order for cm payments?

Hi, my court order stated my ex was to pay me child maintenance in respect of each son until August 2015. Thereafter child maintenance just paid for my younger son.
My ex has already dropped payments down in August to just paying for youngest son, and won''t pay me the difference, despite polite emails and that I will go back to court to enforce this order. My solicitor said I should register the court order and this will help me claim. Can I do this myself and is it form D151?
Can I put down order of costs against him and that I''m keeping costs down by representing my self.
Any help would be grateful. I have tried to communicate but have no response from him. Ignoring requests for the money and been given a couple of weeks to pay. I know money is not the issue for him.

How old is the order as if it''s more than one year old either of you can open a CSA case as they have authority with child maintenance.

It was ordered March thus year 2014

It is only potentially valid then until March 2015 as even your husband can request a CSA assessment after one year and then the order is invalid.

It seems like a bit of a waste of time getting a court order for child maintenance as at least with the CSA it''s their responsibility to chase up payment and the assessment level the court uses is the same as the CSA.

So I think as you said your only option is to make a claim through the courts. They can make an attachment of earnings order for you so it shouldn''t be an issue again unless your ex husband is self employed in which case I think they would make an order against his property.

I don''t know for certain if you can make a cost claim, I suspect you can but it would be better for someone else to give you a definite answer.

do I understand that you are saying that although periodical child maintenance payments are written down in an agreed court order approved by the judge, that it is still only valid for a year despite written dates on it? if so what is point of putting it in court order?
....and sorry payments were reduced this August 2014 , one month earlier than they should have been unlike I said previously!, August 2015!

I am worried he won''t honour other payments till end of secondary education and when 18yrs old for younger son, as stated on signed court agreement, as his son who is 15 chooses not to see his father at all, so if he stops payment altogether he isn''t abiding by what the court order says and I wouldn''t then know what to do.

If I register the order now, will I likely get attachment of earning payment like you suggest. He is not self employed, has a very secure job in education.
What forms would I use...he is disobeying court order stamped by judge in a March 2014.

Thank you Naziam, for your replies so far

If maintenance provision is made in a financial Consent Order, you can apply to enforce the terms of the order.

As mentioned above, a child maintenance order is only valid for 12 months as the CSA/CMS has jurisdiction once 12 months has elapsed. Either party can apply for an assessment for future payments.

In relation to the enforcement issue, you can apply for any shortfall to date and your costs of the application to enforce. If you are dealing with this yourself your costs will be limited to the court fee.

Charles