It looks like this credit card has a positive balance instead of negative therefore increasing how much you have available. If you click on My Transactions, you should see your running balance go up to a positive amount.
02/23/2016 00:28:41
ozhsv
User
Credit card balance wrong
Hi, I have 3 credit cards all of which have amounts owing and 2 of them show the correct available limits with the amount owing in brackets, however the third account shows the amount owing without brackets and the total limit available shows as the amount owing ($790) PLUS the total limit available ($1000) thereby increasing the amount available from $1000 to $1790?