How to create a voucher to reset pppoe each 30 DAYS

i will state my case briefly:
i am a small ISP arround 85 users
for the time being i use mikrotik only as a bandwidth limiter.
I am planning to use user manager

All my pppoe users are static because i assign the username to a router as TPlink router so can all pcs and mobile connect threw this router at the end client.

what i need in some way

an automated regeneration code to reactivate the same pppoe user not to create a new user …

can someone help me ? if possible

I cannot each time go and access the tp_link router and tell users to change the pppoe account
i need in a way to regenerate a code that can reactivate the pppoe-user

is this possible using user manager

it can be done or not just a simple advice

PPPOE users


i need to regenerate a pincode to reactivate the same pppoe username and password when the account expire???
using usermanager

If you’re not strictly stick to usermanager, you may have a look at http://accessmanager.in. It allows you to generate recharge vouchers with PIN, and hand out those PINs to your clients renew/recharge their account.

Thank you!