A sorry

Sorry about that, but it was Jesper443 there said we should try to a new game on a server, try to get items, on a claim'd server Hehehe

Uh...okay...
First of all,
NO non-staff posts on ban appeals. Are you staff jesper? No.
This is NOT a vouching session. It is up to the staff member(s) who banned you both.
Both banned? Make your own separate appeals.

Second,
"hehehehe"
"We didn't grief a lot :D"
Is a crappy excuse. You really want to come back? Find a better reason why you should be unbanned.
Also, that smiley face and laughter won't help you here.... Neither will any other emoticon.... It just reads as "doesn't care enough to write more then one or two sentences and laungh" to us...

Third,
I checked the ban thread records to see what I could find that might help you, all I can find is Jester's ban.
https://oasis-smp.forumotion.com/t5207-banned-jesper443?highlight=jesper443
Banned by invertpanda permanently for griefing. December 2011... almost 2 years ago...
Luka, I have no idea who you are.
But it's been two years, so maybe if you appeal with the right format, and actually mean it, someone will unban you.
You must use this format as stated in ariley92's ban appeal format thread:
-----------------------------
Minecraft username:

Mod/Admin who banned you:

Reason you were banned:

Reason you believe you should be unbanned:
--------------------------------------------------

Good Luck!

First of all, you didn't even bother to use the proper format for appeals.

 Minecraft username:

Mod/Admin who banned you:

Reason you were banned:

Reason you believe you should be unbanned:

And second, what would "we didn't grief a lot" mean? that's just broken logic. "We broke the rules, but not that much". It's is boolean, you either broke them or you didn't, not level-based.