Still NO refund after 2 months!!!!!!!!

The patio chairs that I ordered and paid for were OOS I was advised on the 8th of April that they were OOS To date 12 June (over 2 months later) STILL NO REFUND!!!!! I have shared proof from my bank that it has not been received but Leroy seem to think they have, other than a DPO they cannot prove OTHERWISE!!! This is pitiful and shocking that I have yet to receive my refund after endless phone calls and emails!!