unhappy client

I called in today the 28th of February 2019 at 13:50 and spoke to one of your consultant on why didn’t the debit went off on the 20/02/2019 as per the agreed. I was advised that my policy has lapsed and which I failed to understand why because I only missed one payment that was January payment which I reversed because I was encountering some financial problems. It pains me to see the policies that I have been paying for the whole ten years to lapse like that and can you kindly re-instate my policies so I can continue with my monthly premium