It's a rather funky phrasing, and I don't think it's an issue with your English. "per" is usually used to mean "in accordance with". So, "per your request" me

It's a rather funky phrasing, and I don't think it's an issue with your English. "per" is usually used to mean "in accordance with". So, "per your request" means "in accordance with with your request". It looks the submitter was trying to use "per developer" to mean "according to the developer". While "according to" and "in accordance with" are synonymous when meaning that two things are in agreement, I wouldn't use "in accordance with" or "per" to mean "as told by".