Depends if it was in the T&Cs of the agreement you signed to get them on case.
If this is the first you've learned of their abortive fee, then you could probably challenge it and try to bargain to reduce it. They should be paid for their work, obvs, so an itemised invoice would help so you can figure out if they have done most of the work required to get this over the line.
If the 95% fee has been in plain sight all along, then yeah just pony up.
Thanks. It's my own fault, in the initial excitement, they offered a no completion, no fee at a cost of £50 or something silly, which I ignored/missed.
Depends if it was in the T&Cs of the agreement you signed to get them on case.
If this is the first you've learned of their abortive fee, then you could probably challenge it and try to bargain to reduce it. They should be paid for their work, obvs, so an itemised invoice would help so you can figure out if they have done most of the work required to get this over the line.
If the 95% fee has been in plain sight all along, then yeah just pony up.