Sorry that this happened, however I found this video on youtube for always on display for your A32. Also this samsung support page: https://www.samsung.com/us/support/answer/ANS00062001/ Hope that is helpful.
Incoming call issue: Make sure that there are no updates available for your device. I have noticed that alot of people have complained about this to apple in the past. Data usage issue: You could be using a prorated amount of data from the date you c...