Planetspark — Paid in full, not provided full no of classes committed

I paid for 30 classes and after completing 15 classes planetspark team surprisingly stopped taking classes and started asking for more money. Every perdon we go to will give different rates and different resolution but no one is able to actually resolve the issue. Their cuatomee aupport team is not able to connect to the concern person. Managers and coordinators are not responding. I need my refund if they are nlt going to complete the course.