We wish to continue our investigation of the quantum magnet Ca10Cr7O28. This material consists of distorted kagome bilayers of spin-1/2 Cr5+ ions where ferromagnetic and antiferromagnetic triangles alternate in the kagome plane as well as between the 2 layers of the bilayer. This always places a ferromagnetic triangle on top of an antiferromagnetic triangle and vice versa resulting in a high degree of frustration and a spin-liquid ground-state. Our previous measurements on IN14 with the FlatCone setup revealed broad and diffuse excitations in the kagome plane reminiscent of fractionalized excitations although the temperature was above the boundary of the spin-liquid ground-state. No correlations were observed perpendicular to the kagome planes pointing to highly two-dimensional magnetism. Here we wish to extend our investigation of Ca10Cr7O28 to lower temperatures to verify that the fractionalized excitations survive in the ground-state below 300mK. We also want to prove that the magnetism in this material is indeed two-dimensional by measuring the energy dependence of the excitations parallel and perpendicular to the kagome planes.