Short Term Insurance

My Short Term Policy has lapsed. They re-instate it for me. My only downfall was that they could not re-instate it for me from day 1. My Salary only get paid in my account on the 15th. I asked and they said no. If I do instate from day one they will debit my account 48hours later and not double on the 15th. I asked for a double debit order and they said no. I've been with them for a while now. I do not want to leave Discovery and had good experience with them. That was sad and at the moment I do not have cover. I hope and trust nothing bad is going to happen until 15th