Why are settelement and bill amount different when I checked after transaction
When you deposit money with credit card,
it will consider as same case as foreign shopping,
so even you deposit the money with "Japanese Yen",
there are some card companies will put the different price on internet history.
The charge becomes same as the amount of settlement with a settlement decision on total day of the card, Still when it is different please confirm the matter of not matching the bills and actual use to card company.