no response from the team

i had paid my arrears amount at mtn and called them that they need to re-instate my service,i sent through a proof of payment, and did a read and delivery report on my message to check if the mail went through of which it did.but i was ignored still kept on calling and sending emails, but still i never worked, was given wrong email address by boitumelo ramadi and primrose mvuvu.iv been a customer with mtn for so long but they continue to treat me badly.