Telkom Mess!

I have been utterly disgusted and disappointed by the service I am receiving from Telkom on my WiFi. For months I've been complaining about how my data just disappears and I spend over thousands for a R359 contract each month! I've opened up a case and today I find out, without any communication, that is has been closed. Each time I load data a portion of it disappears and I find myself asking how? How can I purchase 60gigs and when it's loaded I only receive 50? And when I query this I am told "we can see it on our side ma'am" but why can't I see it on my dashboard???? Next thing, after only 2 days the data is depleted....how????......I am paying for data I don't even use and when I open a case its all of a sudden closed...what's going on? I'm really disappointed and greatly dissatisfied with Telkom and wouldn't recommend it to anyone else....I want out!