I did and it took 4-5 for the claim to be validated and then 2 days after that I received a voucher code to use on the Samsung website which then took 2 days from order to delivery. It's easy enough.
I claimed mine yesterday and apparently delivery on Wednesday. Pretty straight forward. Was disappointed with being only offered the white pair, considering the deal came with the Notes and the sales pitch was based around having head phones to match. Really wanted the Mystic bronze to go with my new phone they only cost £20 more, so unsure of why we are limited to just white.