I have been trying to get some decent inner door sill trims for some time now (mine is the SE Tech so doesn't have any factory fitted) and even though I can source the Xcellence and FR, well, my car is neither.
I looked for Tiguan (AllSpace) ones but they all have some garish Tiguan lettering until I bumped (a combination of chance and research) on this:
Chrome Inner Door Sill Scuff Plate Stainless Steel 4 Pc Interior
It took about a month for them to arrive and the package was cracked at the bottom and all sills bent! Fortunately, I have a friend with a decent heat gun so managed to bring them to an acceptable condition. Fitting is very straightforward, make sure to clean the surface thoroughly and heat both the surface and double-sided tape, sizing is perfect and adhesion, so far, very good.
I am unsure about the rears but will keep them for now (they obviously are for the Tiguan proper, not the AllSpace (which is the VW Tarraco equivalent).