well i doubt any spell would get you a thousand dollars in a week, you could try a spell, but i'd say it would take at least a month to get the money. you should also look into debt collections or something to help you pay down your debt quickly.
off the top of my head, take the green candle and rub the peppermint oil on it, visualizing your desired outcome [receiving a check, finding money, paying down your debt, so on] then write the amount out and who you own on the paper. place the candle on the paper, light the candle, cup your hands around the candle, feel the energy pooling in the candle, and reflect on and/or visualize how you will pay down the debt [extra hours at work, odd jobs for family, finding money, unexpected cheque in the mail...]
once you've finished the spell be sure to actually work to the goal. call up the people you owe and try to work out a repayment plan, talk to a financial aid for help, ask if there's extra work available.