Not without consent from the agent whom you bought your currently policy from. I've tried and they put up alot red tape just to frustrate you. Best way out is to buy any new policy with the agent of your choice.

Latest policy offered should be better in terms of coverage and benefits so canceling the old to buy the new can be beneficial in certain cases. Those who have a large portion of their premium tied in investment linked will lose out more the longer the policy is enforced so you either cut early or you die die also pay till matured. Also, take note not to cancel your old policy until at least 6-9 mths have passed since you bought the replacement policy. Insurer are known to take every chance to deny life/medical policy bought only months ago.

TS can go to their HQ and file a complaint that your agent is not giving you due service. The backup agent that's appointed to you probably comes from the agency instead of the insurer.

Everything is right except the premium part. The premium changes is not to protect agents (agents is like us, just a small pebble in a quary). When you buy a policy, the premium is locked in for a certain period of time (assuming everything normal) and you can know at certain age, the premium will increase (because you're more likely to fall down injuring yourself due to old age) and many other factors like family history or vices (smoking drinking etc). That's why your premium doesn't go up every year (by statistic medical cost goes up every year), they instead go up once every few years. So when you change an agent, your policy will be review and the premium will be calculated base on the time it was being review so your premium sure go up lo.

I'm not 100% certain, but fill that form only puts a new agent to service you. If there is still commission payable to the old agent, he/she will still get it. When they check in the system, old agent still lead in your policy.