Ordered upholstery for 93 Silverado bench seat w/a...

Ordered upholstery for 93 Silverado bench seat w/armrest. No issues with order issues or shipping, you get an A+ on that. However, I paid an upholstery shop to install the new upholstery, Apparently material wasn't cut properly from manufacturer, lines in the seat can not be installed straight. Hard to describe but it looks like a Walmart seat cover. To late to return and even if I did would have to pay for another install job.