Vodacom really really disgusting service I am getting

Good Day,

I am about to lose a house that I’m buying because of a vodacom and their IT issues

I requested they send me a letter of account in good standing and they told me they don’t have such so I should rather cancel my contract with them then they’ll send me a cancellation letter to give to the bank I’m applying to

It’s almost a month now and they tell me they can’t give me a quote for cancellation they have logged the call with their back office

The people I speak to just done care and when I ask to speak to a manager I always get told that their in a meeting

This is affecting me and my family negatively as it is the only letter outstanding for us to get our home loan. Please can you kindly intervene