very poor service delivery

We purchased 2 different extra long single mattresses recommended from the machine that was supposed to advise us of the best possible beds to suit my partner and myself .We purchased at the HOUSE and Garden show on the !st of July 2024 after being show what was supposed to be an innovative method of choosing a mattress to suit us individually. We paid and were promised delivery after the show finished. To date 8 days from the end of the show and now 7 phone calls later NO MATRESSES NO DELIVERY and serios concern that if they cannot even return phone calls will we ever get our very expensive mattresses. This raises serious concern about the ethics of the company.