MTN management totally useless

MTN complaints management is totally pathetic and useless. Sent them a mail regarging April 2024 invoice which was not mailed to me. Only after a few days i received a reply once again apolgizing for the inconvenience. Also asked what my cell number was. When i wrote the mail i placed my.cell number in the subject line.Why ask info which i already gave them. Its very clear that they are incapable of solving any issues sent to them. Its clear that the management team is totally clueless. What a shame ? How do they expect customers to be satisfied with this disgusting performance?