Last year I worked for my former employer as an independent contractor. Our agreement was that I would do the work detailed and then invoice the company who would then pay me for the invoices billed. I sent the company all of the invoices for work I agreed to do for them, but now almost a year later I have still not received payment. I've called my former company to demand prompt payment but they say that they are unable to pay me in full and can only afford to pay me in small weekly installments until the entire total of all invoices is paid off. They have not kept up with these weekly payments. What are my options to get paid in full promptly?