Bad Service

Hi,i made an order with you guys about a week ago.firstly the order was delivered to a wrong address which is my residential address, the driver was rude but either way my nephew was able to collect the order for me.upon getting home i realised the order was wrong,i made a mistake when i ordered instead of ordering single bedding i ordered double bed, i then called the following day and received a reference and was advisd to send the order back via postoffice.post office is on strike right now,i called home choice and spoke to a rude gentle man named Ayanda who refused to send me the address even though i explained a couple of times i ddnt have paper and pen to write down the address, i asked him to send an email, text or sms with address, he got rude and would speak over me. I called around 1h30 yesterday whch was 11/07/2018.I asked for his name and surname he hung up on me. I just want to know what step i should take in returning the goods as the post office is currently on strike