New hot tub cover

Purchased from Wayfair for $534. Arrived this week and does not fit our hot tub. 77 inches in the middle for length and width, tapers to 73 inches at the sides. Good quality. Still in the box. Wayfair link and description https://www.wayfair.com/outdoor/pdp/hot-tub-cover-auav1008.html Cash or Venmo only.