I posted a letter at 12:33 on Friday 16th for Saturday Special Delivery. I have just checked the tracker and it says it was not delivered.
Latest update: We have your item
Your item with reference * has been held for delivery on Monday. This is either at the request of the receiving customer or because the address is an exclusion for Saturday deliveries.

Can anyone tell me why this failed? The documents were important and there was someone waiting at the business specifically on a Saturday to pick this item up to process them before Monday as there was a deadline to hit.
Although there was no monetary value in the package just paper it may set me back a few hundred pounds in extra charges by the company now. Doubt there is anything I can claim regards this?
I am just hoping it gets delivered first thing Monday morning if its not lost and the company process them without delaying the process.
Any help much appreciated, kind regards.