Unfortunately, as of current, Parcelforce's API do not support Live Shipping Rates to be returned. As such, Shiptheory is unable to fetch or provide shipping rates for orders being booked with Parcelforce on your account.
Any agreed shipping rates with your Parcelforce carrier account will continue to apply when booking orders through Shiptheory, however as mentioned these will not be displayed on the Shiptheory interface when requesting `Get Rates`.
Need any help with this? One of our Support Team would be happy to give you a hand!