1.I am using 3hk $68 rechargeable 3g sim. I plan to use mainly on whatsapp.
However, many other apps start to use my expensive data. When I try to block
their background data, I found that they are not using background data and I cant
block. please help me to block them!
2.Actually did I choose wrongly for this plan or sim? I am quite flexible. if I have much data I can use them up but if I have little I can use only for whatsapp. what plan or sim and company should I choose next time? speed is not important as long as it is functioning^^
thx please answer q.1
q.2 is optional thx