I've seen a few threads regarding getting disconnected within squad battles. I sent screenshots of what happened to EA today and they've got back to me. They're unable to prevent the loss but have issued me with a goodwill gesture.
As long as you have some kind of proof it happens they sure can help on the EA chat. They sent me the steps to check my connection but also honoured me with three premium gold packs!
I'm not sure if I got lucky but I was surprised myself and the packs are now in my account after 5 minutes.