Fridge repair ********

I contacted this company as my fridge wasn’t working. They told me call out fee was R200. They got here said it would be 1500 to fix, we asked about guarantee and they said 3 months . They spent 30 mins and said it was fixed, waited for freezer to start freezing and demanded payment. I had a dr app to run to and I said I’d do it once done. They refused to leave. Eventually they did but said they would be back to wait. I eventually sent them 1200 and my husband called me an hour later to say it wasn’t working. They refuse to send the technician back unless the 300 is paid , I’ve subsequently tried to call them and refuse to pick up. Last call I made to tech he claimed he had to wait for office instructions. Next time he said office had not called, he had no. Airtime so would get some and call them. Now not one of them is picking up calls. Total ******* and unprofessional - I’ve been a sucker - people beware . I will now have to call in someone reputable.