One of the Best Buy stores in Houston offered Hurricane Harvey victims bottled water ... for a price, a very high one and now the company's apologizing.

The store was caught selling 12-packs of Smartwater for $29.98 and 24-packs of Dasani for a whopping $42.96. A photo of the display went viral this week, amid allegations of price gouging in the wake of the Harvey.

Best Buy now admits, "This was a big mistake on the part of a few employees at one store on Friday. As a company we are focused on helping, not hurting affected people. We’re sorry and it won’t happen again."

A rep for the retail tech giant added ... Best Buy doesn't normally sell water, and that the employees at this specific store were pricing the packs based on single bottle prices.

Gotta say ... we think the Geek Squad would not approve.