Pending transaction and blunders with my card have ruined my holidays

First National Bank does very little to assist their customers who are out of the country. I am currently residing in China and was to return home for the holidays. FNB ****** me of the chance to spend the festive season with my family. Firstly, they issued me a new card, and secretly changed my profile so I couldn't purchase online using my new card. Secondly, when my card was sorted and I was able to purchase flight tickets online, they stored my transaction in the pending queue for more than 24 hours, which has resulted in me slowly losing the flight reservation I purchased. The penalties of such an action is that I would now need to re-book my ticket at a higher price. FNB's slogan of 'How can we help you?' should fall, for they fail to assist customers who are really in need of urgent assistance. I am still in China having to face increasing bills because I am stuck in a foreign country due to my banks ridiculous processes, and lack of urgent customer service.