R1250 compared to R300 competitor

How can this company charge a person R1250 to re-gas an airconditioner. The competitors quoted me R300 and did the job in 1 hour. These people tried to argue with me that my aircon needed to be replaced because, get this \it is more than 5 years old". There *******s are ripping people of and they are relying on peoples lack of knowledge to ***** from them. After I told him that Im a Mechanical engineer and not a desk jockey he became very rude and bombastic. <br> <br> Please close this idiots place down. I am shocked that these people are allowed to do business in RSA! """