Shocks bought from ECP with both Sachs and KYB tags

[Oliver53]

Interesting that you got such clear and prompt feedback from Sachs.

Let us know how you get on with the return attempts.

I wrote to ECP and they agreed full refund including shipping. They didn't try to argue or anything.
But a 2CV club guy who is familiar with parts says Sachs is not making any damper for 2CVs; they buy parts from KYB and rebrand. He's probably right.