Worst network

I have been trying fot the past 2 months to query about something specific. After calling the contact centre 3 times and agents dropping calls on me when I get through I was unable to call back as I am now only allowed to call 3 times for the month. On the 1St December I called again same thing happened 3 calls later I ahain reached my monthly allowance for calling cust serv. I email cust serv 2 days ago and still no response. Whats the point of telling cust that we can get hold of them 24/7 when I can't. I called 083 173 from a different network and was charged for the calls but again dropped calls. I give up. Clearly mtn is unable to to handle call volumes that's why they doing this. I want to be reimbursed for my airtime wasted on trying to call your cust serv department.