You're not the only one to have had a problem with the wedding services.
While we didn't have an issue with the gift list itself, we opted to add some items to the list that couldn't be found in store and only on the internet. This wasn't in itself a problem, the problem came when they tried to deliver it.
For some reason, they decided to deliver one of the items (out of a microwave, food processor and toaster oven) separately to my parents' address (where I was living before getting married). Unfortunately they were on holiday, so they dropped it over the back gate. Apparently they didn't think this would be a problem. Unsurprisingly, it was a bit broken.
Then they delivered the microwave and toaster oven to our new address. The microwave looked like someone had dropped a brick on it (not on the box - on the microwave) and toaster oven was missing a massive chunk out of the casing.
When they redelivered, the food processor was fine, the new microwave had a chip missing from the glass plate and the toaster oven had a problem with the LCD display on it.
By this point I was so bored of dealing with them I gave up and accepted the faults as the items were at least functional.
I did at least manage to badger 100 quid out of them, but was no way near what I was aiming to get and didn't hugely compensate for the inconvenience.