Customer care that doesnt care

On 24 jan 2020 I paid R500 .instead of using customer number as reference I used my name(boitumelo). My services gets suspended every 4 days .whenever I call they always tell me payment allocation will done... I think I even spent more that R400 of airtime and you guys keep on charging me R50 for disconnecting my service.. some rude consultant Ntombi hung up on me I get kept on hold for longer than 10 minutes with every call I make and its frustrating . Can someone please help me and I've been sending pop ever since.