There seems to be a difference between the available Store Credit of yours with the site currency you had picked previously. Would you like to:
Path Of Exile ITEMS USD $6.53
Path Of Exile ITEMS USD $14.88
Path Of Exile ITEMS USD $24.48
Path Of Exile ITEMS USD $28.03
Path Of Exile ITEMS USD $5.09
Path Of Exile ITEMS USD $8
Path Of Exile ITEMS USD $11
Path Of Exile ITEMS USD $28.61