unrealistic service

Why is it so difficult to get the necessary assistance from this company I settled my account on the 23 February i gave it 48 hours since i settled to follow up and check if everything is in order which was the 26 February i came through to the call center i spoke to Elizabeth she was really unprofessional she took my details i explained to her the reason for my call she then just out of nowhere reconnected my call to someone else i then came through to Nelly at this point i have been connected to this call for 15 minutes (paid call) i presented the same query to her all she told me i needed to send a proof of payment to ********** saying i will receive regular feedback from this manager , I forward the information, the following day all i literally received was acknowledged mail . another call was made to them i spoke to Queeni and she tried to help me but yet at this point i am still unaware whether they have received payment ? what further steps need to follow ? Queeni said she will call me back and provide me with feedback she gave me another email ********** to email my Proof Of Payment till now i haven't received no callback no feedback . All i want to know is what is happening with my account i need a clearance letter i understand if there is a processes that needs to be followed but non of these *********** agents could give me any relevant information regarding my inquiry. I think it was a fairly easy query to handle but your guys on the front line want customers to cry out for needed help via various methods.