seo – Need to publish an ad but alt text and url aren’t what client wants- how do I change it?

I have a client who wants the following to appear when their ad is inspected:
Dimensions: 640×400

File: sports betting site Betway 640×400.jpg

Alt: sports betting site Betway Canada


Our plug in doesn’t allow for changing the alt, and I have included their URL which directs to the site, but when the link ad is inspected, the URL shows our site location:….

Is there a way for me to edit the ad to include their information?