What to do?

Dear reader, I have once asked you the following question: My contract workshop had changed my two shock absorbers behind me on 27.1.2014, because I left a supposedly light oil. I paid for the bill 668.- – it was also changed the hand brake rope because this was also marode. So now ‘s – after the change of the DPF (see other thread from me ) I had to go back to the workshop about 3 weeks ago because the V50 went back to the emergency prog.. only after the then still changed the fuel filter he runs neatly. Since the technician cut me in (another as on the 27.1 /but same workshop) one would have to renew the shock absorbers behind ???? So a bad luck but also – now we actually got the shock absorbers on 27.1.14 – as it looks not changed … I am still stinking – the workshop tries to talk out now so “material errors of the new ones “and it would be exchanged again – of course on guarantee of the shock absorbers are exchanged by me (as it looks like it was not the same as a good thing to me).