Billing dispute with Precision Design

I want to acknowledge that Precision Design has attempted to resolve this issue. However, the solution they're offering (a $333.82 store credit) isn't adequate considering I paid $333.82 for a vacuum cleaner that never worked properly.

ComplaintNest Administrator Intervention: Due to the serious nature of your complaint regarding Precision Design's mattress and the safety concerns you've raised, we have expedited this case in our system. We have directly contacted senior management at Precision Design and have received assurance that this matter will be investigated promptly. Additionally, we have notified the appropriate consumer protection authorities as this appears to be part of a pattern of similar complaints. Please stand by for updates as we work to ensure this situation is properly addressed. ComplaintNest Consumer Protection Team