Ontario Safety Surfacing

I am hoping that my story saves at least one person from falling into the trap that my family did.
Briefly, I called who I thought was Rubaroc for a quote for my pool deck. When their rep did come she quoted approximately $4,800.
I also inquired about my wooden deck (in the same backyard), she said it would be an additional $7,100. A total cost, including taxes, of $12,482.
Being that this was back in late-June 2009, she suggested that if I paid all up front she would be able to save me the HST.
I told her that I was off on a vacation the next day for 7 days, but, she said I had 10 days if I wanted to change my mind.
While on the plane, I explained the situation to my Wife. She did not want the wooden deck work, just the pool deck work.
On my return, I called the company to amend the contract, removing the upper deck work. Note: not CANCELLING, only CHANGING.
Now comes the problem.
I received no call back and had to return the call many times. When the call is returned, I am told that they could only refund an amount less a restocking charge as detailed on their contract because it took more than 10 days to get back to them. I am not sure what they were restocking, because even though promised, none of the materials had been delivered.
Realizing this was the best offer I would get I agreed. So, then I waited for a refund in the $5,000-$6,000 area.
During this period the pool deck work was done, installers were very nice and did a good job.
However, time went on and many excuses made ... the boss was away in Europe, the cheque can not be found. Late in the fall, quite concerned, I was able to get in touch with senior management, he ensured me that the money would be returned. A week later he called and apologetically said that the President had decided not to return any refund.
Long and short on this one: $4,700 worth of work done ... the charge $12,500.
Be very careful. It seems that I was dealing with a company that I originally thought was Rubaroc, but turned out it was really Ontario Safety Surfacing.
Who ever they are, they have my money and did not earn it. I would like the money owed to me back. By the way, small claims court ... forget it, lawyers tell me it is not worth their while.