How to use coupon/discount code on ovonicshop

How to use coupon/discount code on ovonicshop?
Here are some guide
Pls apply code after check out and before payment
1. Visit ovonicshop via Mobile
Buy Ovonic lipo batteries coupon code
Use Ovonic coupon to buy Ovonic batteries
2.Visit ovonicshop via desktop
Sometimes, we will set a auto discount code that will apply autoly before your payment. If so, you don't need to enter the code, Auto discount can't be cancel or use with other code. 
If you have any problem, pls contact us via