Money paid but not reflecting

I have been struggling endlessly with settlement of my Vodavom contracts. Last year I settled my contracts as we immigrated to Ireland. Then all of a sudden I received an email stating I still owe monies. I then paid this. Then an email came through to day now I am in credit. After requesting a refund, I was refunded double. I sent an email immediately to find out where I can pay the monies back to. I heard nothing and all of a sudden received a summonds. I paid the money back to Vodacom, as per the approved public beneficiaries on Absa, and now they say the bank account is not theirs. This is utter nonsense, my credit history has been affected severly and still I cant get this sorted out.

Can someone COMPETENT please help me. I am in Ireland!