Nice plugin,
and here are the limits i found and i got stuck with.
https://www.dropbox.com/s/lkwzh4rgojdjm0f/not-auto-removing-coupon-when-used-a-second-time.png?dl=0
settings: auto coupon from 50 €, once, 5 € discount
The Plugin blocks my PayPal checkout and tell me:
The usage limit for vouchers has been reached.
but still coupon is active and blocks the checkout,
should be auto removed when email adress is double used for one coupon and the coupon limit is 1 per email adress.
Coupon is nice auto applied when reach 50 €,
but it should remove coupon when limit of coupon exeded.
i used this snippet to reload coupon without success.
I disabled the plugin for the moment as i use “coupon URL” at the moment and only the auto add coupon function was needed from your plugin. So you can not test, also because it blocks my customers to order a second time. because the plugin also could not removed manually.
please see picture for the other small issues i found:
https://www.dropbox.com/s/lkwzh4rgojdjm0f/not-auto-removing-coupon-when-used-a-second-time.png?dl=0