The Next button and Cancel button should be present in the bottom, below the BIP39 Passphrase checker button.
Try to maximize your screen and check back. I use coinomi rarely, but never encountered such an issue. Probably the button should be hidden in the taskbar.
its at its maximum already bro

and iam using windows 7 ultimate, DEL laptop on its smallest screen... very small.. latitue 2110.. i tried scrolling down but not working

. help me pls.. is there any way i can see those buttons?
i also tried puttin the task bar into top location, but still the buttons didnt displayed out..