Unprofessional and no communication and *******

I paid for the installation on the 12th of March and I was told that the installation takes from 7 to 14 days except for the weekends. After 14 days with no luck, I was told they'll contact me the "soonest" and I should wait for them on the 2nd April which is today, still waiting no one is picking up calls, no text, no communication from them whatsoever *** is the number I've been communicating with on whatsapp

I'm highly disappointed and super angry with their miscommunication and how they don't care about their clients. Everyday I'd text them with no response,