Can't help, too bad so sorry

I have been a customer of Vodacom now for years and have an account with two lines. I wanted to to add a new line and followed the instructions and went online to do the purchase. I was given a reference number and told I would be contacted within 24 hours, well 24 hours later with no response I called, first i was told the ref they gave me doesn't exist but they will assist me, then they said I was migrated to the new system and had to phone a another department, so I did they said they only deal with upgrades I must call the sales department, who told me they don't have the deal I must contact the online team, I went through this cycle about 3 times, with the end result being I should go in and do it.