Are 5 months of workshop time acceptable?

My Taycan had 32,000 km on the clock when a battery cell gave up his mind.On 31.03.2024 (this is not a typographical error) he was taken to the workshop in Bamberg and there he is still 25.08.24! Lt. Information from a Porsche mechanic currently has only a few high-voltage workshops, because such a high number of battery problems were not expected. I therefore had to wait several months until in my case in Pforzheim an appointment became free. Atterie was repaired, a call-back action w/ brake hoses was added, which means that my car is still in the workshop. Reason: Brake hoses are not available at the moment. First ic h got a Macon as a replacement car, but because I did not want to have a burner, also because of the fuel costs, I got a Taycan as a replacement car on 23.05.24. This drive up to today. Setens Porsche I have received no excuse for the problem until today. As always, compensation was not offered to me at all. Is this a premium manufacturer’s appropriate behaviour towards a customer? 5 Montae is my car in the workshop!