Hi prakash
thank you for your help. Unfortunately, the screenshot you posted is from my old website, which wasn’t even made using Pro/Themeco Products, and to which the website I am building with Pro is currently redirecting.
If you could visit the correct site (linked in a secure note), you’ll see that on the Contact page there is still using a two column layout and the problem I described in my original posts is still present.
I have disabled the redirection plugin, so please kindly visit the linked website using the credentials I provided in a secure note. 
Please also note that the original thread is still marked as locked, so I’m unable to reply there.
Thank you!