Angry client

I payed for the installation for WiFi with too much WiFi an was sent a message that they tried calling me but I didn't answer,so I let that slide an reschedule for another day,I received a message saying that they will do installation on the 07/05/2024 btwn 8am-17pm... Keep in mind that I hav taken a day off from work to be at home for the installation for wen they come an I was at home the whole day,no one called me an I hav called them 8times today to find out if they are still coming an all they say at the office is that I must wait they will come... keeping my phone in hand whole day waiting for their call,I received a message at 17:40 saying that they have tried calling me an I was not answering so now I must now reschedule... My point is.. I hav taken off a whole day from work all for nothing...I lost a good days work...keep in mind that I am working for myself an everyday means alot for customer satisfaction. They send me a message saying that they have called me but didn't,... lying to me instead of taking responsibility for their poor service delivery... Now I must wait again an take another day off from work an loose money again for them to just lie to me an make empty Promises...but who is re embusting me for my time an money that I am loosing...this is unprofessional an something must be done to make sure they have better service delivery... The way I am feeling I wil not in a million years advise anyone to use their services...