Airtel — Cut off from blackberry and cut off from customer care

I am a registered owner of an airtel line in Nigeria (+[protected] which I use on my blackberry device. I renewed my bis last thursday, 17th december, 2015 after the previous one expired that day. Even though I got an acknowledging sms, I have not been able to browse, get emails or use bbm. Only whatsapp seems to work! I have run diagnostic on the system and it keep showing I am not registered with blackberry! I have been calling customer care to report this problem on a daily basis since friday the 18th and I even received 2 sms acknowledgement of my complaints yet the problem persists. It has become very annoying and frustrating as I am awaiting some mails that will require prompt attention! My blackberry device is my connection to the world professionally and socially. I successfully spoke with a customer care agent last nite and poured all my frustrations with the net work on him. He insisted I go to 'Advanced setting' and register on the network via 'host routing' and then remove and reinsert my battery even after I had told him I get registration messages following each diagnostic I run and that i remove and reinsert my battery several times a day since thursday all to no avail. After I did as he told me, I have been unable to speak with a customer care agent since! Even when i get connected to an agent, the line become silent or a strange sound come on! I think airtel is out to frustrate me and your customercare agent may have cut me of the care line. I want to let you know that I reserve the right to take appropriate action as necessary because I cannot be treated like a nonentity after paying with services not rendered by your network and keep quiet. It has become habitual to have access to the blackberry network delayed for some days after renewal of my bis for some months now! In fact my wife had to stop blackberry subscription on her airtel line for this reason. Yet after such delays, there is no extension of the original access but services are cut off exactly 30days from the subscription date inspite of days without access. In the past it lasted 2 to 4days but this has been the longest and the most annoying for me. Kindly take this as a formal notification of my exasperation with your network and the treatment meted out to me and my intention to pursue justice, please. Dr Sunday Yerumoh, Agenebode, Edo State, Nigeria. Phone no. +[protected].