Ex is pursuing me for unpaid Periodical Payments. Her solicitors threatened that unless arrears were paid within 14 days then they would seek enforcement through the Courts. They refused to disclose whether their client was working, on benefits, and where she was living. Using publically available information, I was able to find out that she had a vacant Council property on the other side of town (probably on the social), was living with family (low outgoings), had a vehicle, and had been running a new business (probably undeclared). My main concern would be whether she could claim that I am harrassing or even stalking her? She did make a false allegation in the past which didn''t go anywhere.
Just not paying what was agreed because you think she has more money isnt an option and will result in you being taken to court and being made to pay up.
I would pay up and then if your circumstances are now different and you can no longer afford the payments go through the correct channels and seek a variance. Where both of you fill in form E again and the court decided whether its appropriate to keep payments the same. (be aware if your circumstances have improved then you could end up paying more)