Translator Reviews ( Japanese → English )

Japanese

アマゾンから送られてくるSeller Fee Tax Invoiceに関して質問です
Price　(excl. VAT)欄の金額が全てのアマゾン手数料でVATがそれに掛かった税金という事であっていますか？つまりTotal priceの合計が私がアマゾンに支払った手数料ひと月の総額という事ですか？

１ヶ月にインボイスが２通届いてる事がありますがこれは何故ですか？例えばインボイスナンバー１と２
また１２月度は１通のみでしたがこれは何故ですか？
それぞれのインボイスの違いを教えて下さい

English

I have a question about Seller Fee Tax Invoice Amazon usually sends.
Is it right that the amount in the field of "Price (excl. VAT)" is the only fee for Amazon and VAT is the tax for it?
So that means, the amount of the field of "Total price" is the total that I paid to Amazon?

I sometimes got two invoices in a month, but how come? (For example, invoice no.1 and 2)
On the other hand, I got only one invoice for December, and I also want to know the reason why?
Please let me know the differences between invoices.