Ref. No. 2112/44-2187
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
The money, you receive for answering the survey from the company is halal, and the commission you get for referring is also halal for you. You are directly involved in both of them and are working hard, therefore this amount is halal. However, if you get money in any other way, explain it and post your question again in details.
And Allah knows best
Darul Ifta
Darul Uloom Waqf Deoband