Exceptionally Poor Service

In February I received a new credit card and called MTN to update the details. I called twice and on both times was informed the system was down and my details couldn't be updated and advised me to email my updated details which I did # ********** 8. On the 19 March, I received a very curt SMS telling me my services would be suspended if I didn't make immediate payment. I called 808 straight away and was informed my debit had bounced obviously as my credit card hadn't been updated. I then provided my details again and was informed that everything was now in order and arranged for the debit to go off the next day. That afternoon I went to the airport to collect people only to discover that my services had been suspended despite me making every effort to provide my new details on different occasions and being assured that everything was now up to date. Having my service disconnected caused me great inconvenience and emotional stress to the people I was collecting as they couldn't reach me and feared something had happened. I find it appaling that as a long term fully paid up client who had made every effort to provide new credit card details that my service can just be disconnected. To make matters worse I couldn't even call 808 customer services. MTN has treated me exceptionally poorly and created undue stress in my life and I want a formal apology and to be compensated for the ordeal I suffered as a result. This is no way to treat and retain loyal customers