Безопасен ли marinetraffic.org?

On Marine Traffic does not post a single phone number for support or to answer questions on subscriptions. After swapping emails with them and asking for support help, I received no information. Hard to understand how anyone could market a software product and offer NO SUPPORT. Hard to understand how any business could required paid subscriptions without a single phone number to answer questions on the cost of the subscription plans and their features. Marine Traffic may be a great website but no way would I signup to automatically pay for a software site without any technical support or any customer support. I do not want to become dependent on their services without understanding the costs and with no support.