XML TAGS with decimal data values disappearing during POST

Im having challenges posting a soap msg specifically using C#, but I tested the same with Java and its working fine.

 

The challenge is my xml request is dropping all tags that have decimal data, eg amount , etc hence am getting Mandatory field missing exception.

 

When I try with java this is how im assigning the values to the decimal type xml elements : body.setTXNAMT(new BigDecimal(10));

 

In C# then I do this : body.TXNAMT = new decimal(10.00);

 

But then the C# client will drop this tag from the xml.

 

I have traced the request using WireShark only to realise that the xml has missing tags.

 

Kindly assist