Inactive SIM card lost - all amount charged lost

I am a forigner student of SAIT Polytechnic in Calgary, Alberta. Last friday evening (05/13/2011), in Rogers Shop in North Hill Commercial Center (1632 14th Avenue NW, Unit 1755, Calgary, AB Canada T2N 1M7), I paid for a SIM card and 2 months in advance for a BlackBerry Plan and 250 international TXT (around CN$ 108). That day the Sales Representative, after I paid, told me He couldn't activate my account and asked me to come back on sturday or sunday, so I went again on sunday afternoon. That day another Sales Rpresentative told me that He couldn´t activate the card because it was sunday, so He also asked me to go back there on monday. Today (05/16/2011) at noon I was there and the Sales Representative (the same who attended me on friday) told me again there were problemns with the system and He couldn´t activate my line. I was in a hurry bause I was in my lunch time and I needed going back to SAIT(place were I am studying), so I am not sure if I took my documents (sim card, aggreement and bill), but when I realized that I didn´t bring them with me I called to the number 403-2021801 (this is the one I found in a Bussiness Card that the Sales Representative Josh Horricks gave to me), but nobody answered the phone. After Class I went back to the shop (Rogers Plus) and another Sales Representative told me that they didn't find the documents and they cannot do anything for me, that mean I lost my investment without using ROGERS WIRLESS SERVICE, even though I paid for it. I think ROGERS IF GUILTY FOR THIS SITUATION because if the Sales Representative would had told me that the system was not able to activate the line on firday, I wouldn´t had paid for it. Now what can I do, I just paid for nothing and nobody wants to help me. ¿Why, if I buy a new SIM CARD, ROGERS is not able to use the amount I paid in advance to charge it in my new account? They know that my SIM CARD never was activated becasue of ROGERS very bad service and worst Sales Representatives. ROGERS has all information about me, why they don't want to solve this situation.