Faulty stove

My electric stove stoped working a while ago and I called Bosch to ask if I’m still under warranty and they said they will come look at the stove, so yesterday two people came to look at it and they told my mother that they can’t work on the stove because there’s coakroaches… like what the hell have they never seen them before 😳 we are in South Africa obviously there will be coakroches if something hasn’t been used for a while.. but they just left and said they won’t do anything until we disinfect I’m soo disappointed with the service I received 😞