Call centre -pathetic service

Yesterday and up to now unable to send sms from my phone. I phoned 140 and spoke to a lady who told me to dial #33*1234*16#, then when I checked re: my balance she did not give correct info. when I asked her name she cut the call. She seems not to be aware of the system. Terrible service from her. Then this string did not work, I called again and spoke Monky who was not very helpful. I requested a team leader to call me as yet no call received. Team leaders never get back to customer. Why are they there in the first place if they cannot help customers. I was transferred to technical, spoke to Boigunilo, who told me to do data roaming and she will call me on the other phone of mine to check if all is in order, which she did not. I still cannot send sms's. Service is terrible, we are inconvenienced. Promises that they will call back but do not. Staff need to be more helpful, efficient and knowledgeable.