The first thing I would look at is did you try to get around the request for information objection with what is recommended in our objections training? That is what I would recommend first. Here is our training and there is a very specific way to hand the request for you to send them information.
I would call back with the exact same script and purpose you used when you called the first time when they asked for information. Only difference is that you can start the call mentioning talking to them before and sending an email.