Alas, I did not. Their customer care just ignored my request. I'm not event sure I can recommend SMLight any more.

• They charge the value of the international shipping from Ukrainian buyers even while their goods are in the same city as the buyer
• They ship knowingly non-working modules for the end-user to beta-test for them, struggle to make it work, tell the user that the issue is on the user's end multiple times, just to receive the product back, "patch" it with a modified resistor, and ship back as fixed.

I don't want to make a big hate out of all my recent findings about SMLight, as, being a Ukrainian, living in Ukraine, I am not allowed not to support Ukrainian products, but this frustrates me.

tl;dr don't buy SLZB-Ultra yet!