Disgusting Service False advertising

I am so disgusted at the service from MTN I am taking all my numbers to another service provider I went to Southgate to upgrade and do an add Sim the upgrade was for a p30 lite I am really not happy with package and was told that there is no data offers for this phone as there is new system and airtime is the only packages available for this phone so now I'm paying a contract and I still have to buy data so it's costing me more! When I asked for the Samsung tablet shown in the brochure for the add sim it clearly says R179 for 4Gb night and 4 gb day but when the add sim was done I was told because I am an existing client I don't qualify for what's in the brochure what bull**** is that because then clearly it's false advertising I was told I can only get the 2gb for R189 that's on the new system so now I'm being charged more getting less data for something that's advertised for less in your brochure another thing is it clearly states for a new line you get 20gb start off bundle with a new contract valid for 7 days I was told 7 days I am still waiting for that bundle what happened to TCF clearly as a customer I am not being treated fairly really this needs to be sorted out ASAP or I am canceling my contract and will take my business elsewhere!