My device went into recovery mode and was not swit...

My device went into recovery mode and was not switching on. They ran some software and it was reset. Data was gone too(but that's ok). Basically it was rudimentary process and they charged me 500 Rupees.. 500 bucks for resetting and when I asked if it was minimum he said, what minimum sir, the device got switched on right? Yeah right. But what the hell did you do to charge me 500 bucks???? To be frank I thought its free or may be a couple of hundred bucks. No standard list of charges, they just charge you how much ever they want. I blame apple for all this. Be prepared to pay even if they touch the iPad.