They won't take away the in-game items but your account will likely be frozen/banned until you pay it back.
At least in my experience that's how it is.
Hi, if im making google play refund for example for 40 Hearthstone packs and I get my money, will my packs disappear from my account too/get banned?
or if im buying gold on tribal wars and refund it, will they take my gold away ?
They won't take away the in-game items but your account will likely be frozen/banned until you pay it back.
At least in my experience that's how it is.
Hi sorry but im not interested. I just want to know if they ban blizzard account or take the packs, and I bet you know for sure so please tell me.
Ok then the tribal wars one?
No, they won't ban you. You may get a warning from Blizzard after around 30 days though that they noticed you recently refunded Google Play and this is your first and last warning.
Source: Done it several times on different accounts.
You are sure man? In case they ban my account can it be unbanned? If yes for what?
If your hearthstone account is valuable, don't risk it over 40 packs lol.