Complaints are submitted in the period of realization of the service later than 14 days as of the date of receipt of the proficiency testing results, in writing to the Manager of PT Provider UCLSB.

Settlement of a complaint related to a proficiency testing scheme is a responsibility of the coordinator of the proficiency testing scheme. Customer complaint is submitted in the form of a “Claim Sheet” QF 5.8-1.

The time limit for resolution of the customer complaint on behalf of PT Provider UCLSB is 30 working days as of the date of acceptance of the complaint.

You may download and fill in „Claim Sheet” QF 5.8-1 here Send it to one of the following e-mails: sslsb@abv.bg; sslsb@yahoo.com