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:
World of Kings Currency USD $7.59
Diablo II: Resurrected Currency USD $14.79
Mobile Legends Top up USD $69.74
Warframe Top up USD $26.27
Warmane Currency USD $0.89
Tencent QQ Top up USD $11.51