Bad service for their clients

Let me start by saying that I run a small company of about 8 employees and we use Mweb as a service provider. We have a contract for 2 sim cards but for the past 3 weeks 1 LTE sim card stopped working and we lost the other one. We called to do a sim swap on the lost sim card and ordered a new card for the one that stopped working. Initially we were told that there is no coverage for our area which is why the other sim card stopped working.I mean we have been in this area for the past 3 years and there has been coverage all along,so what changed.The consultant was confused herself, we were on the phone for about an hour until we lost contact.Then we called again only to be told that there is coverage but Cell C who is their service provider has cancelled the contract with them and our Lte sim card was from Cell C which is why we lost coverage. A day later when we called we were told that Cell C is now back on board but our sim card is now permanently not working,they will put us through to retensions,, I mean how do we retain ourself?Why are we even being put into retensions? So eventually we spoke to retensions and they said they would deliver both sim cards and this was 3 weeks ago. We have not been able to work since and we have been put from one consultant to the next. Everyone that works there seems to be a ****, from normal consultants to managers. We call daily to find out about our sim cards and every person you speak to says the sim cards will be delivered on that day or they will call you back to let you know and then nothing happens. To get through to anyone takes about an hour and when you finally do you dont get any answer, they make you hold for an extra 30 minutes and when they come back they tell you nothing but lies. For the past 3 weeks we have been calling daily because we cant work and then they promise you that, that month is free, I mean how does a month become free when we have not been working for almost the whole month. Then they tell you that they will deduct R1000 from your next invoice for the inconvenience. When asked that they put that on mail, they agree to but up until now we have not received any confirmation. Finally when its time to get the sim cards the courier company calls and gives us a reference number thats linked to someone else and not our company. Now we wait 2 days again for Mweb to sort the mess out. Then the courier guy comes to deliver only to find that they deliver 1 sim card. Now we have to wait for another one, spend countless hours on the phone trying to find out when will we be getting our sim card because the whole office cant function on 1 sim card.The service is bad, they have no respect for their customers and this is a company culture, you can tell.