Telkom not helping me receive my invoices monthly or changing the email to what i need it to be

Good Day

i have been struggling with my business account. have spent countless amount of time calling telkom for them to change my email so i can receive business invoices. so i can have it every month to send it to my bookkeeper and everytime its a struggle its been longer than a year i have to call them from my cell phone and it is not cheap calling them... i dont have a land line at home. i am not at my business to make these calls. i have complained an email today hopefully it will be resolved but i am at my ends whit

just change me email and make sure i will receive my invoices.... all i ask