Harassing spam

I took my VW Transporter to Bosh Sun Valley for a service several years ago. During the day, I received a call alerting me to urgent extra work needed. Not being mechanically minded I don't remember the actual description of what they said was needed. I had a small noise in the engine each time I switched off and I asked if the noise would stop after the work was completed. They said yes. This was around 4 years ago and it cost me a little over R17000, so a lot of money. Of course, the noise persisted and I took it back. They looked under the hood and finally admitted they didn't know what the problem was. I've never taken it back, thankfully I found someone else to look after our vehicles. Besides being ****ed off at the initial rip-off, what makes me more furious is that ever since going there, I have received spam regularly. I've asked many times to remove my info from their database. Besides the harassment, it's incredibly thick-skinned to think I'd bring our cars back to them. Their disregard for privacy and terrible service is about the only thing I would give them 5 stars for.