Vodacom marketing call and expecting immediate decision without anything in writing

I received a call from +*** on 30 September at 12:49 from Vodacom.

The person on the other side of the line said that they were calling to offer me a discount and upgrade on my existing line. The first question asked was why I was on a Month to Month contract, my response was that I enjoyed the freedom of being able to cancel at any time instead of being tied into a contract. The response to this was : "From 2019 to now, you have not cancelled but you're busy making vodacom rich whereas you could have gotten a cheaper contract at a better price and you don't even have a cellphone" I responded telling him that the option was not available when I switched from Contract to Topup month to month to which the response was - that's because I did not qualify and I can't get this from a store.

The statement relating to the fact that I could have got better Value and then telling me that I can't get it from a store is extremely contradictory.

He also stated that I am currently paying too much and that they have current customers who are paying R200 a month and have unlimited calls.

He then ran through a package which entailed an airtime amount with 10GB of data for almost half of what I was currently paying. I asked if he could please provide all of this to me in writing or at least in an e-mail for review so that I could make an informed decision. The response was that he was completely unable to do this. He would be able to send me all terms and conditions after I agreed, but not before.

This kind of marketing makes no sense and breaches the trust relationship, I find it highly unprofessional that Vodacom would allow this kind of marketing in the middle of a regular working day where people are otherwise engaged and be expected to make decisions based on a phone call by someone who blatantly insults their employer by stating that I am paying to much and making Vodacom rich.

Please can this be investigated and the so called discounted amounts and information be made more freely available. as a Vodacom customer for more then 20 years, I find it strange that I'm being told that loyal clients are paying R200 for unlimited calls, and that I could get more then double my current value with 50% spend but only if I make a rushed verbal telephonic decision!. Is this to say that 20 year old clients are NOT loyal clients because Vodacom Shops are not authorized to offer the best deals?.

I note that the caller did not state that the call was recorded so I'm not sure if it was but by default I record all calls and I am happy to make the call recording available as proof of the engagement.