Goods paid not delivered then no Refund as promised several times

Complaints are auto answered by email "thanking you for your purchase" as there does not appear to be any other contact info available? Initial order placed on the 17/02/2022 followed by several emails enquiring when delivery will take place. By 26/07/2022 they agreed to refund me the money. Follow ups on 31/08/2022 and again on 07/09/2022 and finally on 21/09/2022 have still not been received despite providing the requested Bank details TWICE. Caveat Emptor!