JMMECH mobile Mechanics massive labor charges!

I used the mechanics on Saturday, 15 November to repair wiring on my Mercedes S350. 1. I am happy that they sorted some of the issues out with friendly service. 2. It was my fault, I should have insisted on a quote first but, I thought they would have charged me a fair amount based on industry standards. 3. Beware! they charged me more than R2000 per hour for the labor without an invoice. 4. I paid the money directly into the mechanic's bank account! Not into a business account! 5. At the time, I felt extremely uncomfortable to withheld payment, they could have just pull wires out. 6. Don't use them at all unless they do not quote you before-hand and provide you with a company invoice.