In this case there is no 10% will be deducted from the cloak module price since you still did not receive it.
You will need to contact lord MacRae directly about it and i think that it will be a problem if you get MK2 adv instead of MK3 cloaking module. Anyways the base have one at the moment so I am gonna put it on hold until you contact Lord Mac so he can get this issue cleared out.
And Kindly accept my personal apologize regarding the delay in responding to your post.