Not paying money back

Mike came to repair my Whirlpool fridge. Told me he needed a part which he needed to pay for upfront and I needed to therefore pay him for the part of R2140, which I diligently did. Mike bought the part and put it in to my fridge, while doing so broke the part. Whirlpool could not supply another part like this. Mike promised me that he would reimburse me for the part that I had paid him for. This was in February 2015. It is now June 2015 and I am still waiting for Mike to reimburse me my money. My fridge is still broken. <br> Whirlpool cannot supply the part I need to repair my fridge and Leeppa Cooling will not pay my money back to me. Both shocking service.