Embedded links issue

Hello. My current theme displays embedded links in a small box, instead of full width that should cover writing column. I tried another theme and there is no problem like this.

I asked the developers to fix the problem, but they said that it’s not a theme related problem.

However, as i said, other themes display the links in a normal wide box that cover writing column.

What can i do? The theme developers says “you are discrediting our theme!” and therefore request payment for fixing the problem.
Normally, they’re fixing theme-related problems.

• This topic was modified 3 years, 2 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not a Requests and Feedback topic