Don't do business with suzuki

I phoned suzuki for a quote on a new clutch system for my car. After waiting more than a week for suzuki to get back to me, i phoned again and complained. That helped a bit as someone got back to me eventually. I got a quote and paid the 50% deposit required for them to be able to order the part. Just to receive a call now saying that one of the parts \pressure plate\" has doubled in price!!?? The guy thats trying to help me said he will try and give me discount. How is this possible? I should get the system for the price i was quoted. It has been agrred upon in an email and i paid 50% of that amount already. I need this sorted out as i will be visiting suzuki upon collection of the system and all hell will break loose. If this is not sorted out today, i WILL hand this over to the consumer legal department as this to me is *******."