Last week I attempted to lodge this form in person (via my wife) at Kasikorn's Chiang Khan branch. They refused to accept it, stating it has to be emailed.
They also refused to assist with a debit card to replace an expiring one, stating I need an app on my phone. I don't do any banking on my phone, using only my pc.
As their service is non-existent and location extremely inconvenient, with no branches within 120kms of my location, I will close the account I've had for 14 years and transfer the balance of several million to a more user-friendly bank.
I don't plan to remit any funds for a few years and will only lodge a nil tax return if it's compulsory.