Title buying problem.

When buying title "...of the metal", it buys and only displays "The silent". I explain it in detail.
I had 5000 gold and wanted to spend some. So I went to the shop to buy a title. I liked that of "... of the metal", and I clicked on Buy. Suddenly, a notification appeared stating that I had correctly bought eitle "The silent". Now I've checked my gold and it has cost me the price of "The silent", 300 gold, and not the one of "Of the metal", 1000 G. So there must be a problem with some links at title buying.