Ability ti buy voice bundles taken away.

I have an active My GIG20 Topup subscription, for which I have been buying R59 voice bundles that are active for 30 days for as long as I've had the contract.

Recently the option to buy all network bundles have disappeared from my contract on both the Vodacom app and website, fording me to pay for calls out of airtime. This is ridiculously expensive at almost R3 / minute.

There was no communication before whatever changed, changed. All I know is that it must have happened somewhere during the last two months.

I have spoken with contact center agents on 135 on two occasions, and nobody can tell me why this happening. I am still waiting on feedback from the agent I spoke to on Monday.

Somebody, please figure our what is going on and let me know, so that I can decide what I need to do.