SIGURNO PLAĆANJE PLATNIM KARTICAMA!
(Mk’vrivi qaghaldi)
If you meant "solid paper" as in (e.g., cardstock), you could also say:
Here is the translation of into Georgian (Qartulad / ქართულად) , suitable for a name like Darmaduman :
Would you like the full phrase written in Georgian as well?
(Mqari qaghaldi)