Non vbv cards declining?

[safespase]

I've found some non vbv cards however whenever i try to use them we we get an error saying something like "use another card", is this the cards themselves are low qual?

 

[BigBeast]

I've found some non vbv cards however whenever i try to use them we we get an error saying something like "use another card", is this the cards themselves are low qual?

Possible reasons for decline :
1. Not enough balance
2. Bin is blacklisted.
3. Site doesn't accept non-vbv cards.