bad customer service

I have a top up contract with mtn,the fone in question is used to convey bussiness so naturally the accnt is on my dads name as he is the director of the company & the debit order comes off his accnt , on opening this contract my dad specifically instructed the sales clerk that should there be any issues i have full authority to handle it as he doesnt want to deal with such issues. Today i gt my top up,i gt the airtym and the sms but NO DATA so i phoned customer care, and finally gt a consultant BUSIE GEORGE and i tell her i have not recieved my data she ask for my cell no and sees the contract is on my dads name she suddenly becomes very aggressive an refuses to help me unless she cn spk to my dad i tell her thats not possible as we in different parts off the city i also tel her that on opening up the contract my dad speciafically asked to not be troubled and he gave me d authorisation so she sais there is no record of this on her system so she cnt help, so i asked to be put through to her manager and she rudely sais he wont take ur call if his free he will call u. Wat kind of service is this. MTN as a client i have every right to spk to a manager,ur employees are very incomp