gaz coilovers fitted, need a little help

[powey]

Finished fitting my coilovers yesterday but turns out the 1 rear adjuster and the 1 front shock adjuster has sezied. (2nd hand)

Where would be the best place to take it to get this sorted as I have mullered the C spanner

 

[homer simpson]

gaz them selves can fix them dont know how much tho