it after all doesnt really matter, how you did the ping. it NEVER is a proof, also in this case you have not been banned for that.
you have been caught with spam hack, punishment for that is 1 year as it is cracked garena, normally with many other features and normally you do not only use spam hack, but other things.
you ask what proof is needed? well, I guess the EXACT same chat log of that day and screened from your account might help you. everything after is easy to handle, as you can just reinstall garena without crack. so we will not trust that.
as you probably will not have the exact SS of that day, you are running out of options. what now?
make a new account, play it in other rooms, till you are lvl 14 and then join HLRs again. without crack, ofc.
notice: crying in here is not only wasting your time, it is also wasting our time. it will NOT help you. you asked what could help you, I told you. You dont have it? sorry man, then it is just how it is. accept this treatment or leave it be, but stop posting useless things in here please.
thx for your understanding, you can pm me for flaming or asking questions, no need to write anything else in here, other than "ok, I see I have no chance, you can close it, sadface".
greetz,
Eunique