Well if there is "only lvl 4 char" then there should be your other charcters aswell , could be that you shared your account details to someone and they got deleted or something cause its kinda weird that the lvl 4 is stil there and your 80s arent...
Like that guy above said its allways interesting to see how people ask for something after so long , for me its more interesting how so many people share their account info and later come after years confused how their items or stuff or characters are gone , thats whats more interesting to me. Ofcourse not saying thats the case here.
Also your comparison with the "mad tool" is really not on point...I mean you can say then also you donate some clothes to the red cross and you come and ask for your clothes back after 6-7 years hehe , bad comparison again am i right? Ofc its bad , same like yours.
You donated to suport the server , you never bought anything.
Here 8 years so far , so many accounts / characters , stuff i sometimes forget what & where i have it...worst thing that happened in those years was maybe couple of items missing and later on poping in mail and thats all.
But to conclude , if you have details and you didnt share account etc the suport will probably help , worst case scenario atleast you find out what happened to your chars..but its really weird the lvl 4 is there and your other chars aint.