 for all $x,y\in{{\cal V}}_n^t\cup{{\overline {\cal V}}}_n^t$ such that $\|x-y\|\geq 0h$ : $$\begin{aligned} & & \Big|E\exp\Big(i\Big(M_0+M_0\Big)\Big)-E\exp\Big(iM_0\Big)E\exp\Big(iM_0\Big)\Big|\\ & \leq & 