No reminders after 150 days

I like the auto-reminder function for Invoices. It's a good way to get paid! However, I find that it is not possible to set a reminder longer than 150 days after the invoice due date.

Now usually I'm paid well before 150 days, but occasionally a customer needs reminding after this point and I would like to be able to continue to send automatic reminders.

Is there any particular reason for this 150-day limit? I hope that you will consider to increase it.

Thanks!

Mark