Misleading information by agents

I wanted to know if I canceled the contract early, how long would it take before I'm allowed to apply for a new contract on the same number because at Vodacom Cresta I was told I'd have to wait for 2 months before I am allowed to upgrade.

Today I asked for a cancelation quote then proceeded to ask the guy who assisted me this and he said I'll have to wait for the early upgrade due date (July) even though the contract is canceled and on prepaid.

Called again and the lady who assisted me at first said I won't be allowed to upgrade, EVER. Then said maybe after 2 years or so. Then I asked where to call to get clarity as this is not making sense. She then asked her manager and the manager said right after the cancelation I can apply for a new contract on the same number almost immediately.