The high level of the safety butler icon is LV 10.

At present, the hierarchy of safety experts includes 10 grades, which are represented by v 1 to v 10 respectively. Every time you upgrade, you can get "security gold coins" with different values. The higher the level, the more safe gold coins you can get and the higher the exchange privilege value, as shown in the following figure:

Query address:/user/level.html.

Days required to upgrade the current grade: assuming that the current grade is LV5 and the number of days to upgrade to LV6 is 32 days, you need to accelerate from LV5 for 32 days before upgrading to LV6.

I hope it works for you. I wish you a happy working life!