Mercard Limit set to ¥0

Not sure why/how it happened. I only had ¥10,000 credit limit since the beginning and it's always cleared on the 6th and I've been using it vigilantly to sort of build up my credit score.

There's this red marked which is only ¥1 and i can't even pay/clear it up, not sure why. Never happened before when I used to shop in Amazon.

And then suddenly this month, suddenly there's no credit allowed. All the clearance emails have been sent to my email. Just a little confused, anyone had similar experience, how can fix this or how can i clear this ¥1??? Is it not verified yet??? Feeling so confused and lost.

by Sorry-Explorer1027