Do you have instructions for fitting these please? I have a garden retaining wall (total 30cm consisting of outside brick and inside breeze block) which is cracking and leaning away (by up to 2 cm at the top) from a concrete supporting wall (of at least 70 cm thick). The supporting wall is back-filled with soil and rubble and has a lawn on top of it, so access is only easy from the outside brick side. The brick wall tapers from 2.0m down to 1.2m and is about 14m in length. Most of the movement is evident at the higher end of the wall.