Nostalrius Begins - Quality wow vanilla realm (1.12)

Hey, i have just found out my account have been Perma banned, and i dont know why, since all the other account that have been banned i believe mine is for gold Traficing, which is not true, i sold something on AH for a sick amount, Random buyer, when i got the gold i tryed to reach out to the buyer cause i know it was a mistake, i sold somehting for a huge amount, after a while he never logged on an i then Desided to give some gold to my friends so i transfered 90g to my friend wallian and healjob, my lvl 38 mage named Highest. Please check into this.