Worst service ever

I had a contract which was paid up in 2017 and the number was changed to prepaid, this week 4 years later I got to a Vodacom4u store to open a new contract and I get told I still owe them. So I cannot take out a new contract. Mind you, I received a paid up letter on my previous contract already.

Then I get told they escalated the issue and it will take 2 - 4 hours, it's 2 days later and the issue is still not sorted.

Your service is pathetic.