nip w bodex

            if (length == 10 && prefix.Equals("PL"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 11 && prefix.Equals("PL"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 9 && prefix.Equals("AT"))
            {
                NIP.Add(nip, prefix);
                return NIP;

            }
            if (length == 9 && prefix.Equals("DE"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 10 && prefix.Equals("BE"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 8 || length == 9 || length == 10 && prefix.Equals("CZ"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 8 && prefix.Equals("DK"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 11 && prefix.Equals("FR"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 9 && prefix.Equals("ES"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 12 && prefix.Equals("NL"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 8 && prefix.Equals("IE"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 8 && prefix.Equals("LU"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 10 && prefix.Equals("SK"))
            {
                NIP.Add(nip, prefix);
                return NIP; 
            }
            if (length == 8 && prefix.Equals("SI"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 12 && prefix.Equals("SE"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 8 && prefix.Equals("HU"))
            { 
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length == 11 && prefix.Equals("IT"))
            { 
                NIP.Add(nip, prefix);
                return NIP;
            }        
            if (length == 10 && prefix.Equals("GB"))
            { 
                NIP.Add(nip, prefix);
                return NIP;
            }
            if (length <= 10 && length >= 2 && prefix.Equals("RO"))
            {
                NIP.Add(nip, prefix);
                return NIP;
            }