Porting problems

I ported over to Vodacom recently. I've had issues receiving SMS from Cell C, my bank, and other sms providers like SMSPortal. At first I had a good experience, the helpdesk identified a routing problem and managed to fix the link to Cell C so my friends can SMS me again. Now I'm trying to get the bank and SMSPortal sorted out but as soon as I mention the bank then I'm told to go into the bank and fix my settings. I am struggling to explain that is not the bank and get a run around. The helpdesk are not listening. They even logged the Cell C problem again for their technicians. Painful. No internet banking for 3 weeks now.