No feedback on complain and left with defective goods

I submitted my complaint in February regarding my defective couch , i received a email on the 8 of February (Ref Number for complaint 201 ********** 396) "Your complaint has been sent to the supplier for them to investigate and provide feedback .They are given 15 business days to conclude there investigation".

I received a email on the 28th of February "Kindly note we have not yet received the suppliers response"

I sent 4 follow up emails and have not received any update.

Can you please look into this matter and advise.

Contact email - ********** Contact number - **********