Bad Service I have ever received

What a bad service from net99 they promise to call you back and never do, it all started with the installation that was suppose to happen on 28/01/2024 which never happened as i was told that they do not do installations on weekend which the information was given to me after the payment was done, we then booked for monday morning at 07h15 and the guys only showed up at 8h30. The installation was done but the line is not life when you call you talk to 20 people all have different answers i do not understand if they train staff as they go along at different places as i have been given different answers everytime i call. Honestly i feel like they must just refund me my money and i can just get myself another service provider that will be able to assist.