Horrible service

I have been trying to apply for a contract since April 2022 online as I have had a horrible experience with the Vodacom store in my hometown and have not been to the store for the longest of times. First I was told of getting the "as good as new" handset because the one I wanted wasn't available, of which I did. 11 days after the phone was delivered, it had problems and I returned it and had the contract cancelled. I have been trying to get a new contract and unfortunately I'm being sent from pillar to post. Today (08 June 2022) at 13H59 when I tried to call ***4, I was told that my number has been blocked off because of the high volume of calls I'm making to Vodacom Online. I'm trying to understand that is Vodacom saying I am not fit enough to be regarded as their customer or is Vodacom saying my query is one that they will not entertain because since April no-one is willing to step in and help me out to my satisfaction.