Hi from Manila (born and raised in Colchester, UK). I have put my bid at $100 because this could be a five minute fix or half a day, it's hard to know without looking at it. I'd be happy to amend my bid at a later date.
The problem you're having, have you tried looking at it on several different phones and browsers? Is it consistently the same?
I am not the world's best expert at responsive but do have experience and have worked on a website where the CSS/HTML was very, very complicated and was charged with fixing it, on all devices. That was for a yacht charter company renting yachts, so it was all their search and booking functions with a lot of JS.
I'd be happy to take a look at it and would not stop until I get working for you exactly as you want. You'd certainly not have to repost it again.
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Website Applications Developer - PHP/MySQL / HTML/CSS/JQuery/AJAX/JS / SEO - 10 years experience building front-end and back-end for a global yacht charter company. I was the sole developer for 90% of that time. I also built my own online yahtzee (dice game) community with real-time games/chat which is still fairly popular today.
Some of the projects I have completed: booking systems, search/sales/accounts/management/CMS tools, file upload handling, image processing (sizes, adding text, grafting two images etc etc), on-the-fly PDF creation, automated emails with files attached, web-scraping (with/without login spoofing), email scraping, financials etc