yes the new cards are good for online purchases, just buyed myseelf from aliexpress few things, no fees( 29.99$ the product, exactly 29.99$ out of my card balance). As for the other matter, dont think its anything to fix, from what ive been told from cosmo, its because the exchange rate and processing time of the transaction on card. ex. withdraw from ATM on may 1st with one exchange rate, money appear as blocked, then when transcation is final on may 3rd( just a random date) exchange rate will be diferent. honestly doesnt bother me much, from what ive seen using the card 4-5 times, i withdraw less with 2-3$ than with temp card, but then get those back on card in a few days. Also being able to pay with it in stores, and beign contacless is better than temp card was.