paid account, can't get unlocked.

I don't like the public shaming route -- but it seems to be the only way to contact Vodacom. I had to pay an overdue account for my MiFi + 2 kids cellphones. Paid via CC + app on son's cellphone as am not anywhere near a vodashop during lockdown. Account still locked. Son goes to vodashop. No luck. Goes back to vodashop with letter + copy of my ID. They aren't sure why it's locked... I phone customer care -- but no options work because I'm not phoning from one of the numbers on the account...none of which work, and the number I have is a MiFi anyway.