So STBXH is taking DC on holiday during summer holidays. I was recently asked to sign the consent letter which I am happy to do. However he has not fully completed it saying he doesn't have to. Supposedly he thinks they can be amended if you want to. The key piece of information missing is his passport details. Every letter template I can find asks for this. I would have thought it was crucial since it is the only way for it to match his travel documents. However now I have questioned this he has simply said I don't need his passport details to sign it and has simply removed that section from the document. Does this sound right?