Combating mock-ups for a easy desk mat, uncertain the place to go?

Hey all,

I’ve spent months engaged on a retailer promoting customized desk mats. I take advantage of a print supplier that is without doubt one of the solely ones that sells the dimensions I need to promote, however they solely present one mockup. It may be seen right here. The mockups look nothing like what the precise merchandise is, and the precise merchandise seems to be 10x higher!

I’ve tried:

PlaceIt Canva Fiverr artists (most ship low high quality or not the product I want) Rebrandy

What else can I do when my supplier solely provides me one substandard mockup? Simply in search of a easy picture of the pad with a gray background like within the image. Each web site I’ve tried would possibly get shut however doesn't have the dimensions stitched edges, or usability to create a workflow.