Decrypt encrypted PHP code

I need help decrypting some PHP code on my site. I recently hired a company to create me a website. This company turned out to be a real nightmare and ended up delivering my website half encrypted making it impossible for me to make any changes to the site code/functionality. I am looking for someone who has skills in this area and who can decrypt the encrypted code so that I can edit my site. Please only bid if you are confident that you can complete this job.