SHOCKING AFTER SALES CUSTOMER SERVICE

I bought a pair of, what I would deem expensive shoes, from Via Uno. On wearing them a few days later for the first time the rubber soles came loose and a piece broke off. Being at work, I had to continue wearing them, rather uncomfortably. Over the week-end, which was 4 days after wearing them, I took them back, explained the issue, showed Bonnie the Shop Assistant and she said she would speak to her Boss and get back to me on the Monday as her Boss, the store Owner - Paul Viera was away. I did not get a call on the Monday, she only phoned me on the Tuesday to say her Boss was going to come and get them from her to have them fixed. Now 3 weeks later and I have still not heard from Paul Viera or Bonnie. I have since phoned the store 4 times and every time I am told that Paul has the shoes and she (Bonnie) does not know what is going on. I phoned the office number where I was hoping to get hold of Paul (a number Bonnie gave me) and nobody ever answers the phone. Bonnie will not give me Pauls cell number as she says she is not allowed. I am so frustrated! What do I need to do to either get my money back, my shoes repaired or Paul to contact me. Simply unacceptable!!!