Vodacom - taking months to sort out contract in diseased name

I am a pensioner and my husband passed away in June 2021, Both his and my cell phones where on his contract, Its now been four months and its impossible to get a simple transfer of my number on to my name. Three visits to Vodacom in Nicolway Bryanston and four to Vodacom in the Fourways Mall and numerous phone calls to customer care and emails. Vodacom has allowed me to upgrade my phone with my ID and my late husbands death certificate BUT the bill is still in my late husbands name, The debit order now comes off my bank account but I receive an SMS saying it has not been paid. My son also picked up that I am being charges for insurance on my device that I opted out of. It seems my only alternative is to just forget about trying to sort this out and take out a new contract in my name at an alternative service provider,