Faulty bike sold and refusal to collect or fix

My parents and I have bought 5 bikes from this dealership, we love the brand and until now we had good service, however since takeover by the new DP, Gavin, I have had terrible service. The last bike we bought has not been performing like we want to, we have sent it in 4 times. Before I gave up on the brand I tried one last time to send the bike in, assured it would be collected, for 4 days my bike was waiting outside my home for it to be collected. Not once did I get a call or an email to let me know the driver couldn't make it. I have a faulty bike that was sold to me and they are unwilling to do anything about it. I expressed my frustration and was then refused collection of the bike. I will never purchase a bike there again. The sales members I used to deal with have all left due to improper staff treatment. This dealership is falling apart and I will never be back. Thank you for ruining my love for the brand, you guys are a disgrace to Harley Davidson.