Audi SA worst after sales service

I took my vehicle into Audi West Rand on the 3rd of November and was told that a light bulb cannot be replaced because there is warning light on the instrument cluster. I wrote to Audi SA to lodge a request for reconsideration as the left bulb is complete dull and not providing road visibility. One month later I receive a telephonic reply from a consult that has been updating me every second week that they waiting on some snr person to make a decision, today she tells me that Audi has declined my request and I must drive my Audi A3 with one headlight while having a Freeway Maintenance plan that is valid. My advice is don't every buy one of these vehicles as the after sales service is the worst, this is my fourth Audi and will be my last!