terrible service from Mobile Locksmith

I received a call from a lady now regarding service received from mobile locksmith 24/7. This lady unfortunately lost her house keys and requested help. It was a Friday at around 20h00. Shockingly to replace 1 door lock which you could purchase for R120.00 at any hardware and only a short while she was knocked with a bill of R1985.00. When they elderly lady called in to inquire she was greeted with the most unprofessional treatment . The Manager shouted at this lady , aggressively answering her questions. When she asked who the owner was he would not answer. He then ended by putting the phone down on her. I suggest this should be addressed as this is an elderly lady and a total rip off of note.