Worst customer service

I have made arrangements with them via phone that's now if the paid attention because they sound like robots spoke to 2 people one said I must pay R300 now the rest the 28th and reconnet. The other one did not even listen to me. So I was reconnected. Yesterday 12 I was disconnected again. I have made arrangements for the 28th I can't keep on making arrangements and being disconnected. I tried for 2 days getting through on your phone line it just gives a engaged tone. Please help *** ***