This is a terrible story, I'm so sorry that your wonderful trip turned into a bus tour. I absolutely understand exactly how you feel. I know that all cruise companies are able to rearrange almost everything as they wish, it's all laid out in the contract. There are lots of excellent European river cruise companies. It's important to use a travel agent when booking cruises ... a cruise expert TA. You probably would have been booked on a line with more low-water ships. The low water situation has been going on for a long time. This is a real shame. However, Viking has many ships on many cruises, and I urge you to pursue a voucher or discount on a future cruise. Find a good TA who can make sure you have a successful cruise. Good luck and please let us know what transpires.