Welcome to East London and a series of new challenges for you to accomplish and find.
The cache IS at the listed coordinates.
In order to qualify to log this cache as a find, you need to find the cache and sign the log, plus accomplish the following challenge:
Find 9 Letterbox-Hybrid caches, one from each column on the Difficulty-Terrain grid. They can be from different Difficulty levels or all the same. But each of the nine must have a different Terrain level.
You may use the Project-GC checker below to see whether you qualify.