Aibu to not believe him?

[sailorcherries]

I've had various issues with ex and maintenance for DS throughout the years. He never paid for 2 or so years, then lied to the csa for another 2, paid bare minimum for a year and theb finally got a job and had it deducted at source for the past year.

Ex has a history of lies going beyond money; claiming that I stop him seeing DS (he has went EOW, ex just refused to be there); lying to his mother about arranging contact then blaming me; refusing to see DS for a year (DS still went to see exs mother EOW) to name but a few.

Our claim ended in April, and ex seemed to have turned a better leaf: was more on the ball arranging contact; not as abusive verbally to me; but we still have our issues.

He made the May payment no bother, now nothing this month. The second month in! Apparently there are issues with his company's pay this month and it will be resolved 'soon'. Little does ex know my sister's partner works at the same company, same department, same role and he was paid just fine at the start of this week. Aibu, given the circumstances and past to think he is lying? To believe he has buggered the money away and is now scraping to find it?
Would ibu to apply to the cms if this issue isn't resolved in the next week or two, even if it charges both of us, based on the past?

Why haven't you called CMS already?

I don't understand why people choose not to tbh.

Our csa agreememt ended in April, we had an arrangement through them until then.

He asked to avoid them this time, on the condition that any non-payment would result in me pursuing him through them again.

I am asking if I am being unreasonable in not believing his story and to pursue the money through cmsm

YADNBU.

Yep, I also can't understand why you didn't get in touch with the CMS the minute the payment didn't land in your account.

I'm paid the Thursday before the last working Friday in the month. OH is paid the last Friday in the month.
Last month the payment came the last Friday in the month.

I assumed he was paid similarly, until my sister clarified her partner is paid on a set date (and therefore ex is too) I had no idea. I only found that out today at dinner time, so too late to process a new claim which is why I contacted him to ask.