VERY UNHAPPY AND DISGUSTED IN SERVICE BEING RECEIVED FROM VODACOM

I upgraded to an iphone 11 plus at the beginning of last month, am currently paying new installment of R1500 but have not yet received my phone, i have contacted call centre om numerous occassions via phone and email and have date only been told that there is "no stock" however when going into the store i am told that there is ample stock of the device which i am waiting more than a month ago

I am frustrated and irritated and ready to cancel my contract and I have been a customer of vodacom for over 20 years but the service I am currently receiving is putrid.