If you have ERC20 tokens, it it the time to switch to Mainet token now, for swap, please check the document here:

Swap link: https://swap.nbai.io

Instruction for token swap:
   https://medium.com/nebula-ai/nbai-token-swap-instructions-cf00710728e7

Video instruction for token swap (not official, just made by me):  https://www.youtube.com/watch?v=xVnXhIhzHVU