Hi. i own 3 pcs of TPlink EAp225 V3 

I would just like to ask if there is a way wherein we can make a voucher that is consumeable. for example 18 hours of wifi time in 7 days.

Could it be possible? if yes, how do we do it?

i would like to use this type of voucher so i could limit the use of my kids with the internet, i will give them a total of 18 hours to be consumed in 7 days. so that would be 2hours+ of access only per day.

Thank you in advance guys :) godbless you