Don’t use Parcel2go. My girlfriend wanted to send some gifts for Christmas to Portugal and the courier that they use just messed it all up. The parcel tracking wasn’t working. After over a month (after Christmas) the parcel was on its way back to us from Barcelona (yeah, don’t know why). And it still hasn’t showed up. To get the refund (not full) we had to waste quite a bit of time. Awful service.
Saying that, I used the same website for sending parcels within the UK many times and never had a problem.