Bad service at Vodacom

I did 2 upgrades for 2 of my contracts on Sunday, 6 May 2018. Since I did not hear anything from Vodacom in connection with the upgrades, I called vodacom on Thursday, and they told me my upgrades are cancelled! Why? I didn't cancel it? And didn't get any notification about it? The guy at vodacom told me the deals were no longer available as the new deals was loaded on the 7th, but he will see what he can do. Phoned again today, wanting to speak to the guy who helped me yesterday. They told me they will ask him to phone me. The third time today when we called, they told me he is not there today?! Why the lies?? The team leader told us she will do the upgrades immediately and e-mail us the confirmation. Up and till now, still nothing. Vodacom, is this how you treat a loyal customer? I am very disappointed.