I have money on my card,but my payement is not accepted,please help me understand or to complete payements,could be a bug...I don't understand and I am verry sad(and angry also)...I don't want to quit this game forever...but if I cannot buy diamonds anymore...I must do it

please do something,I checked and nothing is wrong with my card,help me guys,I need money to buy staff from Fair Trade

....the point is I bought many times and I did'nt had troubles like now...and I bought from the same card,I dezactived my paypall acount and still does'nt work.. thank you and I hope you could help me. Merry Christmas!