Mailchimp Template Mobile View Fix

Hello,

We are looking for someone with experience in making custom Mailchimp templates to help us fix the mobile view in a Mailchimp template we are using.
Please see illustration attached for your reference. The logo in the mobile view is oversized and in the wrong position, it should be similar to the desktop view.

Please respond with an estimate time it would take you to fix the issue.

Many thanks!
Ugne