hi,
im just changing my offer url on steam, so im planning to renew it in my dispenser account
but the problem is i cant renew it
im trying to change it from preferences menu,i can see my old link but after changing it to new one
its disappear,even the old one

and the bot prompt me about "No trade offer URL configured! "
but i cant change it either

Have you tested whether your new trade offer URL works (test it with other people)? It is only saved if it works (bot will send a 'fake' request to test it).