called enco yesterday to order a few things,i always get a total price including shipping,i inform them i use a prepaid card and will need to go to walmart to put money on it,never has been a problem before.this morning i call them back with the number,and its declined,the enco person says i must have double the billed amount on the card and thats company policy.so they lost a loyal customer today,ive been ordering from them for over twenty years and had never heard of this.the reason i use the prepaid cards is that if its lost or stolen there is no harm done because there is no balance on it.its worked for me for years this way and havent been burned yet...