CAN NOT add a discription to a listing

[dant43dan]

Everytime I try and add a discription to a listing to post the listing it keeps getting deleted so I cant list my item?! Please help 

[emerald40]

Only certain changes can be made and they depend on whether it is an auction or a fixed price listing.

And on auction listings it depends on if there are more or less than 12 hours left.

What type of listing are you trying to change and what type of change are you trying to make.

If the system keeps deleting it it leads me to believe you are not allowed to do it.