At the present time we do not have a UK-based helpline number for Czech Airlines. You can however call their English speaking customer service number on +420 239 007 007.
An alternative form of contact for customer service and complaint enquiries is the airline’s online form: http://www.csa.cz/en/portal/info-and-services/customer-support/complaint-form.htm
As the official passenger aviator to the Czech Republic, Czech Airlines runs flights to and from that country, with most of its jets travelling between European nations. The airline is popular for its adept customer care and after sales support.