Omnia 4 Port 102W - UL Certification?

The Amazon listing for the PA-B7 states that it is UL certified and yet the charger itself doesn’t have the UL seal. Is it really UL certified? If so is there any proof of this?

I emailed support and they initially dismissed my question, then I followed up and they said it’s UL certified according to the amazon listing, then I asked for any sort of proof, and they never replied back. This was almost a week ago. I don’t think it’s UL certified. If it was it would have the UL seal on it.