I have the same issue (now that I've reset my password to login); having pledged £90 on Kickstarter, for it to say I've only paid £50, and need to pay an extra £100 in the store to get back to the same level. Pretty **** poor if you ask me. They need to sort it out asap, It's all very well arguing that they're busy, but this is people's money that they've taken.