corporation that I have done business with for years now wants me to cut last year's prices by ten percent. This year I had increased my price due to fuel prices. I have mowed for them for a year and done snow removal for them for the past five years. We had a verbal agreement that after mowing for them for a year I would raise my price, they had a big company mow for six years before they hired me and were not happy with there service. Should I meet their price? Any suggestions?