No doubt that, if they are 9-10 behind on paying invoices, there's cause to worry. The question is why you are still doing work for them? That makes little sens

No doubt that, if they are 9-10 behind on paying invoices, there's cause to worry. The question is why you are still doing work for them? That makes little sense. I understand having older clients around for years but the combination of slow/late paying and hustling you for lower rates would drive most of us off. Good luck.