I am super and angry and frustrated by the situation

I am using Rain as my WIFI and i have called them several times to advise them that i need a sim swop and no one is calling me regarding that and it since 28 August 2023 and i also called them on the 29th of September to inform them that my salary date has chnageand i have received my salary yet to make a payment and the consultant said she will send it to the billing department but nothing then i called again the Monday 2nd and the consultant said the same thing and i called again yesterday and the guy i spoke to me says that the billing date cant be changed, i cant use the WIFI because the line was disconnected and it was for work purposes and they **** to me and said they will switch the dates for me to the 15th, i am sitting here now without WIFI and it was not my problem that the salaries dates got changed at work and i did not get paid yet for me to pay the R556 ... what am i supposed to do now when the Rain consultants cant advise their customers properly, i cant even do my job now because my line was disconnected but when i asked them for a simswop they have never responded, what kind of company is this, i will change my the service provider because i can see im dealing with a bunch of armatures