I applied for a Schengen Visa for Slovenia on the 23rd of April. After a few days, my visa got refused stating, "you have not provided proof of sufficient means of subsistence..". This was despite having sufficient proof of funds in my sponsor's bank account. I have submitted all documents accordingly but they still refused my visa for the above reason which I think is totally false. My trip is being sponsored by my dad and his funds are enough to support the travel. I found through various sources that this might have been due to the fact that I'm unemployed, and that they are suspicious that I will overstay my visa and become a potential illegal immigrant. Whereas I've no plans on doing so nor any interest. I am planning to ask for a review of my application, but I am confused what should I do so that they take up my case for review again and approve the visa this time. Is there any chance my visa will be approved? Please help me regarding what I should do so that my visa gets approved. I am planning to visit Slovenia this July 16th, for a music festival where I'll be meeting my girlfriend for the first time ever. I am 25 and have enough funds in my sponsor's account to support this trip. I am extremely sad and anxious. Please, please help!
Edit: Picture attached!
Edit 2: Since my visa was denied due to lack of funds("insufficient means of subsistence") will the embassy re-consider it's decision if my sponsor puts in more or adequate amount of money before I make an appeal or re-apply? Or would that make me look suspicious. How do I fix this issue of less funds if I have to appeal or re-apply without making them think I have malicious intents.