iKhokha worst device investment ever

3 years ago our NPO purchased a device to maximize our fundraising events. A few weeks ago I switched on the device to use it and an error message 'COMMUNICATION MODE press C to exit' appeared. I contacted iKhokha, i was told i dropped the device and it can not be fixed and that sales would call me to sell me a new one. I informed the consultant that the device was never dropped, there is no physical damage to make that statement. She was uninterested! Then i asked which button is C so i could exit. Consultant had no idea and informed me that they only import and sell the devices, there is no proper tech support and i would get another call to sell me a new one. We are a charity, this device was an investment! Why would i buy another one when there is no tech support!! Sales department did call & i told the man i dont want to buy a new one & i just wanted to clear the error message. He said he would call me back, its been over a month now without a call back.