Your premium will continue to go up as you age, and it will accelerate into your sixties and beyond. You should talk to a broker to get the best deal you can, but be aware that often your existing cover will be best because depending on the fine print of your policy, they may be stuck with any recent conditions whereas these will be excluded pre existing for new policies.
Real answer: The (1) is an internal reference to which officer it's assigned to. In many embassies there is only 1 person. Then it goes on to another person Pending Approval, who may also be officer number 1 for that role (or sometimes you get contacted asking for more paperwork). The specific number doesn't mean anything for you, don't worry about it.