What a lying *****....

The worse service ever. The instructor never sticks to appointment times and does not communicate in advance if he cannot make it. I got 2 hours of lessons out of him over a time period of 2 months. I requested a refund for the remaining 3hrs which I paid upfront. I am still waiting for 3 weeks now; he just keeps on making excuses and just stopped replying to my messages. What a *****.