How do i collect the gold from another world where i deleted my avatar?
There is a BIG difference between collected gold and purchased gold.
You CANNOT transfer collected gold.
For the future: If I have collected gold in the game and want to stop playing that worls, I buy the smallest amount of gold available, have to wait 7 days, look into the transfer screen to find out how much of my gold is collected / purchased and change the collected gold into Plus days. Plus will be transferred together with purchased gold ... after another 3 days of waiting.
And what they call "domain" means the TLD, the top level domain of the server. You can only transfer vrom .com to .com or from .de to .de etc. The type of game world doesn't matter.