Dip clean pro's cost me my carpet

I hired Dip clean pros to clean my permanently fitted carpet. I asked if they'd be able quote me on it, they quoted me R700 for the lounge, passage and bedroom cleaning. When they got there, the carpet was perfectly fitted but after they were done cleaning they left it damaged. The carpets are now lifted and has humps all over. When I enquired about this the company representative was extremely rude and not willing to take accountability or even apologize. I told them that I am willing to pay for the cleaning but I just wanted them to acknowledge the damage. Instead of addressing the issue, the response was that my carpet is not new and that's why it lifted. I told them I have had the carpet cleaned before by a different company called squeeky clean and I have cleaned the spots myself but it has never lifted, this is the first time this carpet has lifted in the 2 years I have lived there. The response I got was that "maybe this was the time it needed to react after being cleaned 3 times", amongst other extremely rude and absolutely stupid responses. Now my frustration is not about the R700 which I was prepared to pay anyway after the job is done, but this unprofessional human being fails to understand that it will probably cost me 3 or 4 times to have the carpet repaired because of a damage that they did. It would have been water under the bridge if they showed some sort of remourse for not leaving the carpet in the same or similar condition it was in after cleaning. Instead i'm met with insults and very unprofessional responses. I'm a very unhappy customer and they just dont care. I am now left with a bumpy carpet that I have to fix out of my own pocket and this person has just left me hanging with no solution or apology, just arrogance.