Magic jack 'Charged my card multiple times again Internet

i went to the Magic Jack website to renew my device for another year. It asked me to input the security code for the credit card on file, then a message popped up that the payment could not be processed, enter a new card, which I did, then clicked to place the order and again it tells me the payment can't be processed, enter the card again. I did this three times before it successfully placed the order, and then I received 3 alerts that the same amount had been charged to my two cards three times! So that error message is bogus, as it does make the charge...I guess they hope you won't notice until you get your statement weeks later or maybe not at all. Lucky I have alerts set up but still I have to now go through disputing the charges with the credit card companies. I was assured by the live chat person (not in the US) that the additional charges would be dropped, but I remembered that this same thing happened last year when I renewed and I had to dispute the charges. He tried blaming me for having too many cards on file with them but THEY save the card information each time you are prompted to enter it! What a completely predatory way of doing business. I wish I had remembered last year's problems, but I know now I will NEVER forget again nor will I renew this device again....who needs this hassle? It's obviously designed to work in a fraudulent manner since it hasn't been fixed in a year!