Even if you explain to them that you had a bad sales month and don't have enough money in your Paypal/bank account, they will write themselves an e-check and keep trying to put it through multiple times until you owe your bank a ton of overdraft fees.
In my case, the overdraft fees could have been avoided if they had given me a one week extension to raise the money by selling or pawning some stuff.
But they blindly and stubbornly refused to turn automatic payments off for a week, even though I warned them that the money wasn't there.
I don't know if they thought I was lying, or thought the bank would pay an overdraft of $400. Talking to them is like talking to robots. They have no empathy for sellers who have had a bad sales month and they don't do payment plants, delays or extensions.