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:
Clash Of Clans Gems USD $48.9
Clash Of Clans Gems USD $20.5
Clash Of Clans Gems USD $5.2
Clash Of Clans Gems USD $95.5
Clash Of Clans Gems USD $12.4
Clash Of Clans Gems USD $7.99
Clash Of Clans Gems USD $10