The layout is designed for ergonomics so you can find the sign in MCW, member area right at the top right corner of the screen. You should see a bright
login button there that is easy to tap with your thumb. Once you click it, just enter your registered phone number and password to get full access. After you are logged in, the replenish balance button will appear in your account dashboard. The Nagad option is usually in the first row of payment methods because it is so popular. I find the mobile interface much easier to navigate than the old desktop version. Everything is just a few taps away and the icons are very clear. If you have any trouble, there is a live chat icon at the bottom of the screen. They are very helpful and speak Bengali too.