I am getting this message on Use Any Font:
Premium Key that were bought before 24th Sep, 2018 will no longer work in Use Any Font 5.0. So please get your replacement key here. You do not need to pay again. Use your old Premium Key as Discount Coupon and it will apply 100% discount. We are sorry for the inconvenience caused.
However, I have NO idea what discount code was used. This is the current active API key: DMTMUZRETD0J28T3R5M2T0J9V170103015156
What do I need to do to upgrade to 5.0?