Misleading Customers

Good day. Your people at the office keep on phoning my mother to upgrade her contract she keeps on telling the lady she doesn't want to upgrade the contract she want's to cancel it because she's a pensioner. Today the lady phoned her again and said to her the subscription will still only be R149 a month for 5gig of data every month. Later when my mother checked her emails on the phone she received a email what's says her subscription will be R298 a month. You people are ****** you think she old and sick you can mislead her. Cancel this contract and stop phoning her and stop giving customers false advertising.