issue with paypal

our site www.vitaminD3world.com was originally set up as an information site. We now offer a small range of vitamin D products so we simply designed our own shopping basket using paypal buttons. We have had an issue with some of the orders being forwarded to our e distributor not being complete and essential information that is forwarded from paypal does not get to the e distributor. As a result we have to check each order and re-enter the information from paypal at our distributors site. We have talked to paypal and the distributor and they each blame eachother-anyone any experience of this situation