Visa reported that its online card usage grew 57.8 percent in the week leading up to Christmas, comprising $1.83 billion in holiday spending, according to Internet Retailer. Interestingly, the day before Christmas showed a slight decrease in spending (1.1 percent). The number of transactions grew to 23.7 million, up 43.1 percent. Visa e-commerce sales for the last two months totaled $17.83 billion.