Once you have completed the survey, look out for your voucher in your inbox by 31 March 2016.
Survey must be completed before 13th March 2016 to benefit.
The survey is 31 questions, allow 5-10 minutes to complete it.
Mod: Cold Rock have informed us that this survey is for VIP Club Members only. If you are not a VIP Club Member you may not receive the voucher
Just did it, holy crap a lot of questions!