Pathetic treatment of clients

I'm so disappointed in Liberty life insurance. I've been a client with you for 14 years and not once have I missed my premium. I had a birthday in February and my policy premium increased, I was not notified of the increase or the amount, no sms or email. When I called in they claimed to have sent a letter in the post but I specifically stated that my preference is sms or email because my post box isn't in use. I paid my February premium as normal but because of the increase it was R130 short and you guys lapsed my policy. No notice or notification that you're lapsing my policy or that I'm R130 in arrears, just straight to lapsing it. Now I have to reinstate it and my premium might increase. This is ridiculous, this is not how you treat a loyal client. Now what if something happens to me within the few days that my policy isn't active. You guys wouldn't pay. Please sort this matter out and reinstate my policy as I will pay the arrears amount.