Sodastream Refills off market

Sodastream have introduced a new model, which uses a different gas bottle and connector. They seem to be withdrawing all the old cylinders now, and I cannot get a replacement cylinder, I therefore have 3 machines which are now *******! All the local stores, Spar, Checkers, Pic n'Pay no longer carry the old cylinders. There has been no adapter made available, nothing. So I also have 5 cylinders, which cost me a huge amount of money as well, which I can now turn into a traditional weapon. Very bad business, and I refuse to buy another machine from them. They will pull the same stunt again!