Suicidal!!!

I have Trying to cancel a contract but keep our cell nos. I was advised that if pay as you go I could keep the numbers. That is what I did. I was billed for two months and airtime was provided. The bill was still addressed to my late husband. Yesterday 23November both these phone numbers no longer exist. I spent two hours in a Vodacom shop this morning trying to sort this mess out. I have had months of dealing with totally *********** people who just pass me onto the next department. I still have no answers. This afternoon I phoned the accounts dept. and was told the phone nos were no longer as I owed Vodacom money. I owe them nothing and am infuriated by this. i would never promote Vodacom again. a great big ZERO for vodacom.