Phone Black listed 'automatically'

After losing my phone I blacklisted it on 3 January 2015. We found it & I sent through an affidavit to Autopage to UN-blacklist the phone (which Autopage confirmed they have proof of on their system). After using it for a while it suddenly indicated 'Emergency Calls ONLY' - I contacted the call centre who confirmed that the service/phone was active & all was working on their side. I was advised to send the phone to the manufactured for repairs who replaced the phone's main board. I received the phone yesterday & it still doesn't work. I contacted Autopage again this morning & was told that their system ' Automatically blacklisted' my phone & that this is in fact why my phone indicated 'Emergency call ONLY'. Non of my previous calls are logged on their system & there is not 1 manager available to explain the situation. I had to buy a new phone since I was without a working phone for a month & lost all my info (due to the main board being replaced) due to their mistake. I however still need to pay for their call centre not providing any decent service & them suspending my service. They provide NO explanation, NO apology & is unconcerned about what their incompetence have costed me.