I'm really sorry,
i'm banned for 5 days for 'griefing' a nether base

i'm sorry and it won't happen again, i didn't know that it was a nether base, all i saw was the sign saying not to go in or i'l get a ban(i thought it was just somebody being greedy and not using the precious gems protection), i did what the sign said and didn't go in, i then mined up a few of the nether bricks along the bridge running towards the sign, but not past the sign, my friend wanted to see so we built a cobble bridge over as soon as i realised what the place was i immediately said that we should leave, and so we did, i then forgot to remove my cobble bridge and forgot to make the netherbick bride usable to get to the sign
I'm incredibly sorry and it definitely WONT happen again.
Please may i have the ban lifted under 'Benefit of the doubt' ??