Messages from oshi

Oshi is a term that has various meanings depending on the context. Based on the SMS messages received, it appears to be related to an online gambling or gaming platform offering bonuses and free spins for players who sign up through their website link. However, web search results reveal that "Oshi" can also mean different things in Japanese culture such as being a fan of someone or something (known as oshimen), actively supporting idols/stars/things by recommending them far and wide, changing one's favorite idol/star/thing (oshi hen) among others. It seems like Oshi may have been chosen due to its catchy sound which could easily stick with people once they hear about it from other sources such as friends or social media influencers promoting certain products/services/campaigns/companies/apps/websites etcetera under this name.