Your ASSUMPTION that they were deliberately lying to you, and intended to match names to surveys, is not necesarily correct.
Don't get me wrong - it MAY be correct, but it doesn't have to be. Depending on the type (and purpose) of the survey. I sometimes collect data that is CONFIDENTIAL, but I NEED to have the names of people, so that they (as cases in my data file) can be matched to other information that is necessary for my analysis - like demographics, test scores, etc - that I have in other databases, by name.
So I'll sometimes collect data where I ask people to identify themselve, so that they can be "matched" with the correct data, and as soon as the match takes place in my data file, I erase their names. In such a way, the data ARE completely confidental, and no names are associated with any data or results, but the individual identification is necessary as a step in the correct coding of the data.
I'm just saying that is what MAY be going on in your case, and not some nefarious attempt to deceive and trick you. If so, they should have explained it better - but you should perhaps not have jumped to conclusions either.
In my experience, if you are going to stand up and accuse people of being dishonest, you better be 100% SURE that they are actually dishonest. I cannot tell if that is the case in your scenario.
Just feedback on my part - not taking sides or attacking you.