Top up contract softlocked

Everyday, between 2 ********** , Vodacom sends this message ;

Vodacom Balance Notification. For your information. MANDATORY ACCOUNT LIMIT REACHED-SUBSCRIBERS SOFTLOCKED followed by:

Your Credit Limit Bar has been activated. To view balances, buy bundles & save dial *111# or visit vodacom.mobi.

The contract is a TOP UP CONTRACT. I do not understand why Vodacom has a softlock and a credit limit on a top up contract.

Waterfront Vodacom shop (who have been very helpful) have sent out emails to the Vodacom technical support various times but the problem has not been sorted by Vodacom. Since Friday, the 9th of February I haven’t been able to use the phone. If I call the Vodacom shop, they open it and it’ll be locked again between 2 ********** .

I regret porting my number from Mtn to Vodacom. The contract was completed on the 21st of January 2018 but haven’t fully enjoyed the phone.

We are now contemplating canceling the contract.