My dota account is level 6 and I can't gift any items to my friends (tradable or untradable). Regardless whether I try to gift a TI10 immortal item or a regular marketable item, I get the error "At your battle point level you may not gift non-tradable items. This gift could not currently be sent." I get the same error even when I try to gift a regular tradable/marketable item. Is this a bug or is my account level too low? I thought you can start gifting items at level 5.