A locksmith that gives you keys to a door that will not open but call themselves locksmiths?

On Saturday I left my car keys in the ignition while trying to jump start my battery and I managed to lock the car with the keys in the ignition. I am a Discovery Insure client and changed my insurance cover due to lock-down, I then proceeded to call Discovery Insure for guidance. Discovery referred me to GP Locksmith in Alberton, one of their service providers. I called GP Locksmith and they were very helpful and came to assist me late afternoon with a call out fee of R750.00. The guys came out and managed to get the key out of the ignition but left the car locked. I was very misfortunate as I had the key of my car in my hand but could not open the car. I called the locksmith to tell them what was going on, but the response on the other side was aweful. They told me the job was done, I should have checked before the guys left the premises, the car would not open due to the battery being dead but the job was done. I got the key and that is what they were paid to do. I then asked what kind of a locksmith gives the keys to a door that does not open, could they to please assist otherwise how could i jump start the car if it would not open! They said that they were going to charge me an additional R750.00 as the guys had left the premises and that would be another call out fee. I mentioned that i was a Discovery Insure client and they the reduced the amount from R750.00 to R395.00 to open the car for me. I am extremely disappointed with their customer service / service delivery! If Discovery Insure called their service provider, I am sure I would have been given excellent service, but due to the fact i called in privately recommended by Discovery Insure that wasn't good enough. Does GP Locksmith know what good customer service is? I don't think so, if they knew what good customer service / service delivery was they would not hand me keys without an open door, and complain about how difficult is was to get the key. What kind of locksmiths give you keys to a car that can open? Complain about the job being tough to do, asking how much the job was quoted and still not doing the job properly? Services Providers do not take Private call-in for granted they are referred by someone!