Sun Life Life Insurance Reviews

I work in a dental office and call insurance companies all the time. Never bothered to leave a review until today. Sun Life always keeps me on hold way longer than any other insurance company. And when I have another call come in, I can't put them on hold for 30 seconds without them hanging up. Even though they tell me I have a minute, they don't care. Worst customer service of any company.

I have called several times and have been unable to reach anyone for help...
After one hour of waiting, I am told I am not at the right place (despite having had advice from the local advisor to call these numbers) and I am transferred to another line where the wait is over one hour. I eventually had to leave as I have to work and I am not able to take a day off work to get through the system.
And the same process is ongoing.
What am I supposed to do?
It seems to me that the company is incompetent or is mainly concerned about maximizing profit but certainly doesn't care about customers.

Impossible to get through to their helpline. Tried calling through the mobile app. It doesn't work - there is no such option that comes up. Every year, despite adding my beneficiaries, they remove my daughters from coverage without any intimation to me. Unfortunately, I don't have a choice as they are appointed by my employers. I would NEVER use them.