Poor client service and Not delivering on their promise.

VERY UNHAPPY CLIENT On the 18 February 2021 I received a call from Gareth Antony at Rain . He asked if I wanted to take an offer of a 5G for R479 per month as I already had a 4G for the same amount. I agreed on the offer which he explained that it is better and faster. I waited until the 25 February as this was promised that it would be delivered within 5 or 7 days. I phoned and sent an email wanting to find out as to what is happening as I have been waiting I received an email again from Gareth and this time he promised within 10 days from 01 March 2021 meaning by the 10Th of March 2021 delivery will come through . I waited until yesterday and instead of them sending the offer promised, when I send the email inquiring about my order the response I got was about the current active 4G simcard that I have and network. The people that I spoke to yesterday and Wednesday are Magdeline, Gomotso and 2 more ladies promised that they will refer my query and when they phoned back they told me Gareth promised to get it delivered and today He sends me another message that also has to do with network instead of sorting out my query. I have all the emails that he sent confirming our conversation.