Pathetic non existant customer service

Vodacom - have been a loyal subscriber for twenty years. Did two overseas trip at the beginning of April so bill more than normal. On 17th April received an SMS to say I was over my credit limit and have been soft locked. Cant phone out, no data services on my line, my husband's and my daughters line. This has been going on now since then. I have to phone in at least once most days twice to request to be unlocked. Just to get through to someone that speaks takes up to three minutes the answer all the security questions and explain my story. If you lucky get unlocked immediately, if consultant is clueless get referred to the back office who then has to approve the unlock. Everytime I am told this has been escalated, my credit limit increased and block removed and everyday I get blocked again. Infuriating - pathetic non existant service.