Hi, I know that this isn't Steam support or whatever, but I'd like to know if anyone has faced this issue before?

I've been trying to purchase a few games and DLCs with MasterCard (after PayPal was removed from my mode of payment) for quite some time now, but I keep receiving these same messages, even after restarting, logging out and uninstalling Steam over and over.

I've checked with Support, which told me to check with my bank, and even they said that there is no issues with my card or purchases made back when I could buy games here.

Anyway, just wanting to let this out in this Discussions. I'd appreciate if there are people out there to help with this issue.