trebuia sql da nu aveam cum verifica daca e sau nu platitor fara web service
de aia am optat sa fac tot in C#
daca am vreme azi poate il fac in sql

verificare daca e platitor
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 public partial class _Default : System.Web.UI.Page
    {
        public string tara = "RO";
        public bool valid = false;
        public DateTime data;
        public String firma = String.Empty;
        public String adresa = String.Empty;
        public eu.europa.ec.checkVatService service = new eu.europa.ec.checkVatService();
        protected void Page_Load(object sender, EventArgs e)
        {
          
        }
        public string VerifPlatitorTVA(string CIF)
        {

            try
            {
                data = service.checkVat(ref tara, ref CIF, out valid, out firma, out adresa);
                return valid + "#" + firma + "#" + adresa + "#";
            }
            catch (Exception est)
            {
               do
               {
                try
                {
                data = service.checkVat(ref tara, ref CIF, out valid, out firma, out adresa);
                return valid + "#" + firma + "#" + adresa + "#";
                }
                   catch(Exception est1)
                {
                   }
               }
               while(est.Message!="SERVER BUSY");
            }
            return "";
        }