If it's written in the benefits section of your CC, you'll be correct.
My two Pfennig on this: The highest level of any importance is 11, when the member no. is maxed out. Eventually (L21?), the benefits will max out for good.
Much earlier, the monetary benefits are exhausted: CC L4, when members have received both Putter Pal + Stroke Pal.
Any other benefits is peanuts, IMHO.