Bad service

Wow where must I start don't even know. So at the end of Dec we have made a online purchase. So we are waiting for the order to be delivered. So after almost 2 weeks I phone the customer service and ask them for my delivery, no they say there was a problem on the system so I must go into the back to reverse the transaction to get my money back. So I do it. Then 1 Feb I went into the Bayside Branch order my stuff via the branch paid in cash. So Friday morning I get a phone call the stuff will be delivered all exited arrange off at work to be at home just to get one thing delivered not assembled as I have paid for and the delivery company told me they are going to take it back because I have paid for the assembly and they didn't get instructions so assemble it. I don't know if this is the worst but on Saturday I received a sms that my couch will be delivered mid March, I didn't even bought a couch. I really don't know that to do anymore went into the Branch yesterday so they told me they will follow up. Don't even know why I have bothered to try and buy after the first attempt on your side failed. Please give me feedback.