Count related records

Count related records

Hi, I'm trying to count related records but I seem to only be getting the output "4" - any idea why?
  2. relRecords = zoho.crm.getRelatedRecords("Vendors","Leads_referred",SupplierId);
  3. count = 0;
  4. for each record in relRecords
  5. {
  6. count = count + 1;
  7. }
  8. mp = map();
  9. mp.put("Rec_Count",count);
  10. up = zoho.crm.updateRecord("Vendors",SupplierId,{"Rec_Count":count});
  11. updateResp = zoho.crm.updateRecord("Vendors",SupplierId,mp);
  12. info count;