Bad service

I am very disappointed with Vodacom & the level of customer service I received, I have a contract with them & now due for an upgrade bt when I went to istore to upgrade they told me I couldn't because of my profile needs to be updated or uplifted. On the 6 th of June I called customer service for the same & the advisor claimed to log a request which will take up to 72 hours but I had nothing from them since Everytime I call they promise to send an email on to the relevant team, last of last week I sent an email about my dissatisfaction to so called complaints team no response even today.i never even missed one payment with them, they take via debit every month am very very disappointed