As said above, generally trouble free. We used to have instances where requests were duplicated and charged twice but this (fingers crossed!) doesn't seem to happen now. At the moment, however, I have a problem. I'm trying to get a quote for sending a parcel to an IV3 8R post code. According to your system, this post code does not exist but, according to Royal Mail, who set the post codes, it is correct. I've also checked with the customer. As a result, I'm going to have to find another route as your system will not allow me to proceed. No matter how often I insert this post code, I cannot get a quote for it.