coca cola ignoring my report

I wrote another reporting regarding the coca cola competition I entered that said I smsd the code and it said invalid or used but it couldn't be because I jus opened the coke bottle and it hadn't been used but they didn't bother to call me back instead they jus ignored me and now I'm upset wnt advise ppl to waste their time on their competitions like I did and my money buying them look how many times iv played why do they have to rob me didn't they make enough money from me already