A business Im involved in does online surveys. As with anything there can be a mistake or misunderstanding over an account credit or voucher type thing. Some people can get very angry over this rather than lodge a report with our member services team. We have seen people call into offices and give death threats over $2. And while you can find our office address online, we keep it a little hidden and don't encourage the location or phone number to be public. So basically for us its to keep potential lunatics away.