I bought a true SIM card in 7-11 for 350 baht, I used it for a month. The other day the tariff will end, you need to extend it for two weeks. Tell me how to do it?

[Sergey]

I bought a true SIM card in 7-11 for 350 baht, I used it for a month. The other day the tariff will end, you need to extend it for two weeks. Tell me how to do it?

[Serjio]

Put money 300 baht in 7/11)

[Den]

Through the app.