what's Diners Club? I didn't have any pb with my VISA.
Ordered a few days ago, the heart nail book just like you

it was shipped out yesterday and I should be getting it either tomorrow or the day after that!
It's a great place overall, I tend not to buy from them first because they only offer EMS for overseas fans (I'm not often home, and the post office is quite far so if I miss the delivery guy..), and obviously EMS is also quite expensive, but sometimes with their special offers, it's worth it! Another reason why I'm not using them as much is becoz of customs fees (which depends on where you live). If you live in the US, then it shouldn't be a problem

Otherwise, Idk, it depends of your package's total value & other factors depending on your country's rules, so be sure to check that out!