Asking if possible [Acc hack]

Ok, my friend had his account hacked today by someone in his friendlist who got into his account used his 6000 RP to buy skins for himself and gift them, I told my friend to make a support ticket to riot to see if they could do anything about it, he said he wouldnt since they wouldnt do anything anyways. My question, can Riot refund the RP and ban/punish the account in question if its proven another IP accessed the account which wasnt his usual IP, therefore someone else going on his account and using his RP to send skins to himself or does Riot consider this his own fault thus won't do anything about it?
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