I'm not 100% sure on whether or not this is a PHP error, but I remember that I had to specifically encode the types using SoapVar($var, TYPE).
It does sound like this issue is a miscommunication on the consumer end, but in general I would recommend that you ditch NuSOAP (really old!) and use PHP's SOAP library. It is just way nicer and more powerful and it might just solve your problem by magic.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.