Why are the attractive LG Smart Themes to pay for or to download?

More than once I tried to buy "selected" wallpaper themes plus available fonts via the application of LG Smart Phone Themes. I then checked "all" of the available choices for wallpaper themes and fonts. Again the possibilities were unavailable to purchase any of them. The chance to download free themes or fonts seemed to take quite some time to occur. While this opportunity is pretty enticing the entire experience is disappointing.

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