Poor reaction to a feedback call after service

I took my car here for a service on 27 March. I found the staff to be polite, friendly and efficient, I was impressed by the way that they kept me informed and by the fact that my car was returned to me looking beautifully clean.<br> However, a mere 4 days after my service, I had pulled off the road for a minute and turned my engine off and then tried to start it again, and the car wouldn't start. I managed to jumpstart it and take it to a battery centre where they found that the battery was very low and needed to be replaced.They informed me that this was something that could have been picked up when my car was serviced 4 days before.When I contacted Renault, the person I spoke to was extremely dismissive and simply said that there was no need to check the battery because I hadn't mentioned that anything was wrong. When I said that there wasn't anything wrong to report before then, he simply said,\Oh well these things happen".He was not at all apologetic and I found him to be rude.<br> Therefore"