Inefficient staff and processes

I discovered that I have a call limit amount on my phone, nobody could tell me who requested this initially. On 14/3 my service was suspended for exceeding this limit. I phoned the call centre 10 clock on the 14th and requested an increase (as I was told this was the easiest way to solve the issue). By 14h00 nothing happened, I phoned again at 14h00 spoke to call centre agent 2 and was told it will be done, but nothing happened. I phoned back at 15h00 and spoke to the call centre agent 3, who told me it would be solved. It was, for just about an hour. This morning I phoned call centre agent 4, who told me that the issue would be solved. It was not and she escalated me to support who phoned me back at 10h00 on the 15th to tell me that it will be solved and my service reinstated at 11h00. He will call me back at 11h00 to confirm, which he did but the service was still suspended!<br> I have now been through all the call centre staff and support staff and nobody can up my call limit! At this stage in time I still cannot call out. But never have I missed a payment.<br> Really people, why is it SO DIFFICULT, if the system is the fault override it manually - there seems to be enough employees