[Payment issues on my buyer"s side]

I am a buyer and I just started using Fiverr.  I am definately not a scammer in any sense and I plan to order lots of stuff.  I had this happen to me today.  In fact I am here due to trying to fix it.  I didn't do anything wrong, I didn't bounce any checks and have plenty of money to buy what I order.  But my account has that message and I am tryingn to find out why.  This is so frustrating and has eroded the trust I have in the site.  I thought if I pay and I don't do anything to harm buyers in any way, I would be good.  I really hope to resolve this issue asap.  It's really crazy, and it is costing both me and their sellers money.  I have two supreme order to put in but can't.  Thanks Fiverr.