Hi people

Been a while since ive been on here back to a good old ford..and the problems��

Just had a headgasket water pump and belt done on my focus 1.8 duratorq diesel.. now the revs are rising when changing there gears..the higher revs the more it revs when the clutch is depressed��

Any suggestions? Theyve changed the clutch switch on the pedal.. now there saying could be a bad connection but it wasnt doing it atall before??
Theyve also bypassed my egr would this cause any problems?

Any help appreciated folks

Sam