Thank you. On this website, I do not always get to give good news, and this is one of these times.
The insurance company does not have a duty to remind you to pay. The onus is on you to send in payment in time. If the company does not receive payment, is can suspend you per contract (as it did). If that happens, then whatever event happens during the time that you are not covered is - well - not covered by insurance.
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As such, I am afraid that there is no way to make them pay. I am sorry. Not unless you can somehow prove that you did sent in a payment, but they simply lost it.
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