My advise would be to have them professionally removed at a salon.
I would second this advice too ,
as you risk damaging your hair by removing them yourself ,
treat yourself and go to reputable hairdresser,
or you could ring up your local college ,
this will be a lot cheaper for you,
and this will be helping the students out too,
the students are well supervised by the teachers ,
they will be looking for all different types of hair treatments
including colouring too ,
Give them a ring first to see if they remove extensions , good luck :hug: