Satisfied for the product; not happy for E-Carte Bleue payment problems at Amazon

Regarding this product with its bootable Compact Flash adapter is perfect and allows to mount a Ubuntu (or other) without any problem, (essential to control the bootable adapter) .I could install on an old laptop Thinkpad Ubuntu works perfectly.

For cons, I pointed to the Amazon display problem of the price of a total order for an item INCLUDING VAT, plus Shipping COST BEFORE APPLYING FOR PAYMENT BY E-Cartebleue; this is indeed a problem that occurs each time a customer wants pay by e-carte bleue: sum without appearing shipping is then validated by the bank but is no longer consistent with price and the transaction total and the command is refused; I do not understand why Amazon has not remedied this problem: it results in a refusal to deliver Amazon and extra time for delivery of the item repaying IN WITH NEW E-CB; This is intolerable, because I have put together the information several times and I will be ordering from Amazon if the problem persists ...