MUFG Corporate KK Debit Card only lets you make one order at a time from Amazon?

Title says it all. Maxed out the CC on a big project and thought I would pay for the assets that we require with our MUFG Corporate debit card on Amazon. Ordered about 30 things – the next day my inbox flooded with several bounced payments.

I call up the MUFG Busniess to ask if it's some kind of security trigger – it happens with CCs all the time so I get it. They are like "Security is very strict these days, if you create more than one order from a given vendor (including amazon) in a 24 hour period then you must wait to make another purchase."

I'm like… this has to be horseshit – So I insisted on escalating the call. The person above said more or less the same thing with extra steps (more reasoning than customer support scripts.)

So I'm like, fine, just make a note that I'm making purchases and suspend the security flag for a day or two. They're like "大変申し訳ございませんがそれはできません we cannot possible do that… perhaps you could try another payment method?"

So I'm like, "are you kidding me? Most major banks can suspend security willy-nilly for CC's if you get flagged"

and they are like "We still can't do it."

And I'm like… "so you are telling me – that if for example, I purchase a shinkansen ticket for myself and then I need to buy another one separately in the span of 24 hours for, say, my kohai on the KK Debit… you won't do it?"

And they are like "Yes, and perhaps there may be other reasons."

I'm like… "Other reasons? Like what?"

And they are like "We cannot divulge them because it is related to security."

So then finally I'm like – so you are telling me that every major Japanese company who has to use their Debit card, can not buy more than a single item from a single seller on Amazon? And they are like, yes. If the CEO of Coca-f*ing-Cola Japan has to buy something from Amazon, do they only get one purchase every 24 hours?

This just beggars belief. I called back and asked a different agent, because it just seems ridiculous on it's face.. and they gave me the same answer, so it must indeed be true.

I have a bag of money with a yen sign on it and can't purchase goods and services for my enterprise.

Am I the one that's crazy here? If so by all means, please, let me know – I'd rather learn something from this experience than be ignorant if this is indeed my bad somehow.

… my gut instinct screams to just go open an account with literally any other bank in Japan.