Apple Macbook air battery change

Never use this supplier you will be regret it, i paid them to install a new battery in my Apple MacBook Air. The battery they installed crashed my computer and blown my fan. The owner agreed to fix both the battery and the fan. This never happened, he took my money and promised me a refund. After numerous phone calls he promised me day after day to fix my laptop and to refund me.

He has now stopped responding to my calls and SMS’s and has ran away with my money.