Terrible service

on the 1st of June i contacted vodacom to upgrade my phone, the consultant who assissted me told me i could get a Samsung A30 latest model for an instalment of R299 every month. he advised that the phone would be delivered friday the 5th june. i went ahead and bought a screen protector and cover for the new phone. Friday came and the phone was not delivered. i then did a follow up on the 8th june because i am getting no correspondence from them. when i called the call centre i am told the upgrade was not done maybe the was a technical error. i asked if the upgrade could be redone with the same phone request because i already bought accessories , the connsultant told me no the phone installment will now cost me R329. I find this totally unfair and i logged a complaint with vodacom and i was told i would be given a call back in an hour. no one called i had to follow up myself and the consultant that helped told me they still investigating and she would get back to me end of business. I don't know when end of business will be beacause its now 18:30. i have had 2 contracts with vodacom for more than 10 years but the service they give me is terrible and they cannot blame it on Covid-19.