Like you did with the Voucher System, if you receive new vouchers the green ticket shakes, you should do the same also for the free pro ticket. Since it has 1 month of cooldown, you can’t follow day by day to be precise when you have to collect it. Most of time you miss hours. These hours sum up month per month so you have always a bigger delay when you have to collect the ticket. So if a icon like this one below would appear:
when the cooldown is finished, it would surely help the player to collect it in time.
Thanks for understanding.