As in my posting on the SLF thread, it is possible, but normally takes an age to get a refuel company to take it off.
It is done by the refueller and an engineer as it is not straight forward to remove.
It normally gets put back onto an aircraft from the same airline or if it is removed due to maintenance, it may get put onto an aircraft linked to the maintenance organisation.
The fuel removed is checked for water and other contamination before it can be removed from the aircraft.
I don't know of any fuel company that will remove a few tons of fuel, unless it has been agreed that operator "A" will take it.
What is the fuel company going to do with the fuel which has tied up one of its bowser, if it can not off load it ASAP?
Looks if spannersatcx has beat me to it and l think we agree with each other.