My company moved to a new address. I notified all my clients. One client continues to pay invoices at the old address despite many many requests to update the address. It has been over 6 months now. Eventually, I expect that USPS will no longer forward mail from my old address to the new one.
At what point can my client be held liable for sending payments to the wrong address? It appears to be intentional since requests to update the address are systematically ignored, causing delays in payments.