The 'destruction' method. It was a rather well known solution for dispelling curses. It was quite forceful, and involved getting the caster to essentially rewind the curse by sacrificing the same price he paid in addition to the caster's everything. Their life, their possessions, their soul, it will all be incinerated. Only by doing that will the curse gain the ability to be dispersed.
If the caster was dead, however, this method could be transferred into another source of payment. They had to obtain an item that the caster had strong attachments to, figure out the price range he paid somehow, and reverse the curse by themselves.
It was a simple process if listed down in words, but to do it in reality would be challenging since the curses wouldn't have left any traces on who the caster was unless they came to face the perpetrator and sensed a resonation from the curse.
