bad service

I made a payment in January 2024 and used MyMTN app to make payment.....after 3 months my account was never updated and funds allocated to my contract balance.....After numerous calls ,emails I was was told that the *********** people cannot find the funds which were paid via their app and conformation was sent by MTN and that I will just have to pay it again because it is lost........They said there is nothing they can do and that I just have to pay it again....they are the worst service providers ever...........