Often and willingly, social networks are used to create and vietnam phone number example launch this type of contest: a like on a post, a comment or a share is requested, going completely against social policies.
Case Study: Lancia and Elephantino by Chiara Biasi
giveaway chiara blasi Giveaways: what are they and how are they legally organized?
In Italy we have a successful case study related to Giveaway contests, which is that of Chiara Biasi and Lancia Y.