[AC Question]

I have le eco 1s phone and I faced a severe problem with contact list. When I import the VCARD from my phone memory it reflects on local storage. But after a few days later I realised that almost all my contacts disappeared. On that period I have no net connection. After that I reload the contracts and connect with net and realised now, that automatically the contacts merged with my Google account and the local storage shows 0 contact. But when I went to search some of my saved contact they disappeared after a few days later. Even I connot save permanently an contact to my local account as I haven't found any opinions for that. Can you please help me.