Kicked hard by Vodacom

Been with Vodacom since 1994!! For good reasons we do not have a debit order for the monthly payments. Every month we call in for the amount due. Beginning of Desember the same happened and like always we paid the exact amount or more. Yesterday (29 December) all the accounts was suspended and the reason is that we paied short. No calls, No notification at all. "sorry, we don't know what is going on, after payment of the shortfall AND the new month (January) you will be reconnected in two hours" that is crazy, especially under the current circumstances! Feeling disappointed!