Very bad service from Moresport and Sportsman Warehouse

I e-mailed them on Friday @ 08:21 regarding a fault with my elliptical walker. I only received a call on Monday @ 17:00 to advise technicians would be sent out on Tuesday (they came early and were friendly and helpful enough). They were unable to fix the walker and took it away saying it will only take a day to fix. I e-mailed again today (Friday 24 Jan) at 09:45 for a progress report. I called at 11:45 and was told the woman who checks the e-mail address isn't there (it's a support e-mail address) but she would look into and get back to me. At 13:15 I had still heard nothing and sent a complaint through to Sportsman Warehouse customer care. It is now 16:00 and, apart from an autoresponse from Sportsman Warehouse, I have still received no update as to when I will get my walker back.