Got a wrong bedroom suit delivery now they are refusing to exchanged it - Consumer Complaint for Bradlows - Head Office

I bought a bedroom suit on laybuy on the 13 January 2018 and finished my instalment on the 8 September 2018 and they delivered on the 11 September only to find out the mirror was broken they took it bad and they came back on the 13 September 2018 with incorrect bedroom suit and they took it back and come back again on the 29 September 2018 again brought a wrong bedroom suit which I bought king size but came queen size till now they are refusing to exchange it they give me a runner round it's almost two months now.